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egl: simplify refcounting after screen creation
[mesa.git] / src / egl / drivers / dri2 / egl_dri2.c
1 /*
2 * Copyright © 2010 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
19 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
20 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 *
24 * Authors:
25 * Kristian Høgsberg <krh@bitplanet.net>
26 */
27
28 #define WL_HIDE_DEPRECATED
29
30 #include <stdbool.h>
31 #include <stdint.h>
32 #include <stdbool.h>
33 #include <stdlib.h>
34 #include <string.h>
35 #include <stdio.h>
36 #include <limits.h>
37 #include <dlfcn.h>
38 #include <fcntl.h>
39 #include <errno.h>
40 #include <unistd.h>
41 #include <c11/threads.h>
42 #include <time.h>
43 #ifdef HAVE_LIBDRM
44 #include <xf86drm.h>
45 #include <drm_fourcc.h>
46 #endif
47 #include <GL/gl.h>
48 #include <GL/internal/dri_interface.h>
49 #include <sys/types.h>
50 #include <sys/stat.h>
51
52 #ifdef HAVE_WAYLAND_PLATFORM
53 #include "wayland-drm.h"
54 #include "wayland-drm-client-protocol.h"
55 #include "linux-dmabuf-unstable-v1-client-protocol.h"
56 #endif
57
58 #ifdef HAVE_X11_PLATFORM
59 #include "X11/Xlibint.h"
60 #endif
61
62 #include "egl_dri2.h"
63 #include "GL/mesa_glinterop.h"
64 #include "loader/loader.h"
65 #include "util/u_atomic.h"
66 #include "util/u_vector.h"
67
68 /* The kernel header drm_fourcc.h defines the DRM formats below. We duplicate
69 * some of the definitions here so that building Mesa won't bleeding-edge
70 * kernel headers.
71 */
72 #ifndef DRM_FORMAT_R8
73 #define DRM_FORMAT_R8 fourcc_code('R', '8', ' ', ' ') /* [7:0] R */
74 #endif
75
76 #ifndef DRM_FORMAT_RG88
77 #define DRM_FORMAT_RG88 fourcc_code('R', 'G', '8', '8') /* [15:0] R:G 8:8 little endian */
78 #endif
79
80 #ifndef DRM_FORMAT_GR88
81 #define DRM_FORMAT_GR88 fourcc_code('G', 'R', '8', '8') /* [15:0] G:R 8:8 little endian */
82 #endif
83
84 #ifndef DRM_FORMAT_R16
85 #define DRM_FORMAT_R16 fourcc_code('R', '1', '6', ' ') /* [15:0] R 16 little endian */
86 #endif
87
88 #ifndef DRM_FORMAT_GR1616
89 #define DRM_FORMAT_GR1616 fourcc_code('G', 'R', '3', '2') /* [31:0] R:G 16:16 little endian */
90 #endif
91
92 #ifndef DRM_FORMAT_MOD_INVALID
93 #define DRM_FORMAT_MOD_INVALID ((1ULL<<56) - 1)
94 #endif
95
96 static void
97 dri_set_background_context(void *loaderPrivate)
98 {
99 _EGLContext *ctx = _eglGetCurrentContext();
100 _EGLThreadInfo *t = _eglGetCurrentThread();
101
102 _eglBindContextToThread(ctx, t);
103 }
104
105 static GLboolean
106 dri_is_thread_safe(void *loaderPrivate)
107 {
108 struct dri2_egl_surface *dri2_surf = loaderPrivate;
109 _EGLDisplay *display = dri2_surf->base.Resource.Display;
110
111 #ifdef HAVE_X11_PLATFORM
112 Display *xdpy = (Display*)display->PlatformDisplay;
113
114 /* Check Xlib is running in thread safe mode when running on EGL/X11-xlib
115 * platform
116 *
117 * 'lock_fns' is the XLockDisplay function pointer of the X11 display 'dpy'.
118 * It wll be NULL if XInitThreads wasn't called.
119 */
120 if (display->Platform == _EGL_PLATFORM_X11 && xdpy && !xdpy->lock_fns)
121 return false;
122 #endif
123
124 #ifdef HAVE_WAYLAND_PLATFORM
125 if (display->Platform == _EGL_PLATFORM_WAYLAND)
126 return true;
127 #endif
128
129 return true;
130 }
131
132 const __DRIbackgroundCallableExtension background_callable_extension = {
133 .base = { __DRI_BACKGROUND_CALLABLE, 2 },
134
135 .setBackgroundContext = dri_set_background_context,
136 .isThreadSafe = dri_is_thread_safe,
137 };
138
139 const __DRIuseInvalidateExtension use_invalidate = {
140 .base = { __DRI_USE_INVALIDATE, 1 }
141 };
142
143 static const EGLint dri2_to_egl_attribute_map[__DRI_ATTRIB_MAX] = {
144 [__DRI_ATTRIB_BUFFER_SIZE ] = EGL_BUFFER_SIZE,
145 [__DRI_ATTRIB_LEVEL] = EGL_LEVEL,
146 [__DRI_ATTRIB_RED_SIZE] = EGL_RED_SIZE,
147 [__DRI_ATTRIB_GREEN_SIZE] = EGL_GREEN_SIZE,
148 [__DRI_ATTRIB_BLUE_SIZE] = EGL_BLUE_SIZE,
149 [__DRI_ATTRIB_LUMINANCE_SIZE] = EGL_LUMINANCE_SIZE,
150 [__DRI_ATTRIB_ALPHA_SIZE] = EGL_ALPHA_SIZE,
151 [__DRI_ATTRIB_DEPTH_SIZE] = EGL_DEPTH_SIZE,
152 [__DRI_ATTRIB_STENCIL_SIZE] = EGL_STENCIL_SIZE,
153 [__DRI_ATTRIB_SAMPLE_BUFFERS] = EGL_SAMPLE_BUFFERS,
154 [__DRI_ATTRIB_SAMPLES] = EGL_SAMPLES,
155 [__DRI_ATTRIB_MAX_PBUFFER_WIDTH] = EGL_MAX_PBUFFER_WIDTH,
156 [__DRI_ATTRIB_MAX_PBUFFER_HEIGHT] = EGL_MAX_PBUFFER_HEIGHT,
157 [__DRI_ATTRIB_MAX_PBUFFER_PIXELS] = EGL_MAX_PBUFFER_PIXELS,
158 [__DRI_ATTRIB_MAX_SWAP_INTERVAL] = EGL_MAX_SWAP_INTERVAL,
159 [__DRI_ATTRIB_MIN_SWAP_INTERVAL] = EGL_MIN_SWAP_INTERVAL,
160 [__DRI_ATTRIB_YINVERTED] = EGL_Y_INVERTED_NOK,
161 };
162
163 const __DRIconfig *
164 dri2_get_dri_config(struct dri2_egl_config *conf, EGLint surface_type,
165 EGLenum colorspace)
166 {
167 const bool double_buffer = surface_type == EGL_WINDOW_BIT;
168 const bool srgb = colorspace == EGL_GL_COLORSPACE_SRGB_KHR;
169
170 return conf->dri_config[double_buffer][srgb];
171 }
172
173 static EGLBoolean
174 dri2_match_config(const _EGLConfig *conf, const _EGLConfig *criteria)
175 {
176 if (_eglCompareConfigs(conf, criteria, NULL, EGL_FALSE) != 0)
177 return EGL_FALSE;
178
179 if (!_eglMatchConfig(conf, criteria))
180 return EGL_FALSE;
181
182 return EGL_TRUE;
183 }
184
185 struct dri2_egl_config *
186 dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
187 EGLint surface_type, const EGLint *attr_list,
188 const unsigned int *rgba_masks)
189 {
190 struct dri2_egl_config *conf;
191 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
192 _EGLConfig base;
193 unsigned int attrib, value, double_buffer;
194 bool srgb = false;
195 EGLint key, bind_to_texture_rgb, bind_to_texture_rgba;
196 unsigned int dri_masks[4] = { 0, 0, 0, 0 };
197 _EGLConfig *matching_config;
198 EGLint num_configs = 0;
199 EGLint config_id;
200
201 _eglInitConfig(&base, disp, id);
202
203 double_buffer = 0;
204 bind_to_texture_rgb = 0;
205 bind_to_texture_rgba = 0;
206
207 for (int i = 0; dri2_dpy->core->indexConfigAttrib(dri_config, i, &attrib,
208 &value); ++i) {
209 switch (attrib) {
210 case __DRI_ATTRIB_RENDER_TYPE:
211 if (value & __DRI_ATTRIB_RGBA_BIT)
212 value = EGL_RGB_BUFFER;
213 else if (value & __DRI_ATTRIB_LUMINANCE_BIT)
214 value = EGL_LUMINANCE_BUFFER;
215 else
216 return NULL;
217 _eglSetConfigKey(&base, EGL_COLOR_BUFFER_TYPE, value);
218 break;
219
220 case __DRI_ATTRIB_CONFIG_CAVEAT:
221 if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
222 value = EGL_NON_CONFORMANT_CONFIG;
223 else if (value & __DRI_ATTRIB_SLOW_BIT)
224 value = EGL_SLOW_CONFIG;
225 else
226 value = EGL_NONE;
227 _eglSetConfigKey(&base, EGL_CONFIG_CAVEAT, value);
228 break;
229
230 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGB:
231 bind_to_texture_rgb = value;
232 break;
233
234 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA:
235 bind_to_texture_rgba = value;
236 break;
237
238 case __DRI_ATTRIB_DOUBLE_BUFFER:
239 double_buffer = value;
240 break;
241
242 case __DRI_ATTRIB_RED_MASK:
243 dri_masks[0] = value;
244 break;
245
246 case __DRI_ATTRIB_GREEN_MASK:
247 dri_masks[1] = value;
248 break;
249
250 case __DRI_ATTRIB_BLUE_MASK:
251 dri_masks[2] = value;
252 break;
253
254 case __DRI_ATTRIB_ALPHA_MASK:
255 dri_masks[3] = value;
256 break;
257
258 case __DRI_ATTRIB_ACCUM_RED_SIZE:
259 case __DRI_ATTRIB_ACCUM_GREEN_SIZE:
260 case __DRI_ATTRIB_ACCUM_BLUE_SIZE:
261 case __DRI_ATTRIB_ACCUM_ALPHA_SIZE:
262 /* Don't expose visuals with the accumulation buffer. */
263 if (value > 0)
264 return NULL;
265 break;
266
267 case __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE:
268 srgb = value != 0;
269 if (!disp->Extensions.KHR_gl_colorspace && srgb)
270 return NULL;
271 break;
272
273 case __DRI_ATTRIB_MAX_PBUFFER_WIDTH:
274 _eglSetConfigKey(&base, EGL_MAX_PBUFFER_WIDTH,
275 _EGL_MAX_PBUFFER_WIDTH);
276 break;
277 case __DRI_ATTRIB_MAX_PBUFFER_HEIGHT:
278 _eglSetConfigKey(&base, EGL_MAX_PBUFFER_HEIGHT,
279 _EGL_MAX_PBUFFER_HEIGHT);
280 break;
281
282 default:
283 key = dri2_to_egl_attribute_map[attrib];
284 if (key != 0)
285 _eglSetConfigKey(&base, key, value);
286 break;
287 }
288 }
289
290 if (attr_list)
291 for (int i = 0; attr_list[i] != EGL_NONE; i += 2)
292 _eglSetConfigKey(&base, attr_list[i], attr_list[i+1]);
293
294 if (rgba_masks && memcmp(rgba_masks, dri_masks, sizeof(dri_masks)))
295 return NULL;
296
297 base.NativeRenderable = EGL_TRUE;
298
299 base.SurfaceType = surface_type;
300 if (surface_type & (EGL_PBUFFER_BIT |
301 (disp->Extensions.NOK_texture_from_pixmap ? EGL_PIXMAP_BIT : 0))) {
302 base.BindToTextureRGB = bind_to_texture_rgb;
303 if (base.AlphaSize > 0)
304 base.BindToTextureRGBA = bind_to_texture_rgba;
305 }
306
307 base.RenderableType = disp->ClientAPIs;
308 base.Conformant = disp->ClientAPIs;
309
310 base.MinSwapInterval = dri2_dpy->min_swap_interval;
311 base.MaxSwapInterval = dri2_dpy->max_swap_interval;
312
313 if (!_eglValidateConfig(&base, EGL_FALSE)) {
314 _eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id);
315 return NULL;
316 }
317
318 config_id = base.ConfigID;
319 base.ConfigID = EGL_DONT_CARE;
320 base.SurfaceType = EGL_DONT_CARE;
321 num_configs = _eglFilterArray(disp->Configs, (void **) &matching_config, 1,
322 (_EGLArrayForEach) dri2_match_config, &base);
323
324 if (num_configs == 1) {
325 conf = (struct dri2_egl_config *) matching_config;
326
327 if (!conf->dri_config[double_buffer][srgb])
328 conf->dri_config[double_buffer][srgb] = dri_config;
329 else
330 /* a similar config type is already added (unlikely) => discard */
331 return NULL;
332 }
333 else if (num_configs == 0) {
334 conf = calloc(1, sizeof *conf);
335 if (conf == NULL)
336 return NULL;
337
338 conf->dri_config[double_buffer][srgb] = dri_config;
339
340 memcpy(&conf->base, &base, sizeof base);
341 conf->base.SurfaceType = 0;
342 conf->base.ConfigID = config_id;
343
344 _eglLinkConfig(&conf->base);
345 }
346 else {
347 assert(0);
348 return NULL;
349 }
350
351 if (double_buffer) {
352 surface_type &= ~EGL_PIXMAP_BIT;
353 }
354
355 /* No support for pbuffer + MSAA for now.
356 *
357 * XXX TODO: pbuffer + MSAA does not work and causes crashes.
358 * See QT bugreport: https://bugreports.qt.io/browse/QTBUG-47509
359 */
360 if (base.Samples) {
361 surface_type &= ~EGL_PBUFFER_BIT;
362 }
363
364 conf->base.SurfaceType |= surface_type;
365
366 return conf;
367 }
368
369 __DRIimage *
370 dri2_lookup_egl_image(__DRIscreen *screen, void *image, void *data)
371 {
372 _EGLDisplay *disp = data;
373 struct dri2_egl_image *dri2_img;
374 _EGLImage *img;
375
376 (void) screen;
377
378 img = _eglLookupImage(image, disp);
379 if (img == NULL) {
380 _eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
381 return NULL;
382 }
383
384 dri2_img = dri2_egl_image(image);
385
386 return dri2_img->dri_image;
387 }
388
389 const __DRIimageLookupExtension image_lookup_extension = {
390 .base = { __DRI_IMAGE_LOOKUP, 1 },
391
392 .lookupEGLImage = dri2_lookup_egl_image
393 };
394
395 struct dri2_extension_match {
396 const char *name;
397 int version;
398 int offset;
399 };
400
401 static const struct dri2_extension_match dri3_driver_extensions[] = {
402 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
403 { __DRI_IMAGE_DRIVER, 1, offsetof(struct dri2_egl_display, image_driver) },
404 { NULL, 0, 0 }
405 };
406
407 static const struct dri2_extension_match dri2_driver_extensions[] = {
408 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
409 { __DRI_DRI2, 2, offsetof(struct dri2_egl_display, dri2) },
410 { NULL, 0, 0 }
411 };
412
413 static const struct dri2_extension_match dri2_core_extensions[] = {
414 { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
415 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
416 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
417 { NULL, 0, 0 }
418 };
419
420 static const struct dri2_extension_match swrast_driver_extensions[] = {
421 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
422 { __DRI_SWRAST, 2, offsetof(struct dri2_egl_display, swrast) },
423 { NULL, 0, 0 }
424 };
425
426 static const struct dri2_extension_match swrast_core_extensions[] = {
427 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
428 { NULL, 0, 0 }
429 };
430
431 static const struct dri2_extension_match optional_core_extensions[] = {
432 { __DRI2_ROBUSTNESS, 1, offsetof(struct dri2_egl_display, robustness) },
433 { __DRI2_NO_ERROR, 1, offsetof(struct dri2_egl_display, no_error) },
434 { __DRI2_CONFIG_QUERY, 1, offsetof(struct dri2_egl_display, config) },
435 { __DRI2_FENCE, 1, offsetof(struct dri2_egl_display, fence) },
436 { __DRI2_RENDERER_QUERY, 1, offsetof(struct dri2_egl_display, rendererQuery) },
437 { __DRI2_INTEROP, 1, offsetof(struct dri2_egl_display, interop) },
438 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
439 { NULL, 0, 0 }
440 };
441
442 static EGLBoolean
443 dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
444 const struct dri2_extension_match *matches,
445 const __DRIextension **extensions,
446 bool optional)
447 {
448 int ret = EGL_TRUE;
449 void *field;
450
451 for (int i = 0; extensions[i]; i++) {
452 _eglLog(_EGL_DEBUG, "found extension `%s'", extensions[i]->name);
453 for (int j = 0; matches[j].name; j++) {
454 if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
455 extensions[i]->version >= matches[j].version) {
456 field = ((char *) dri2_dpy + matches[j].offset);
457 *(const __DRIextension **) field = extensions[i];
458 _eglLog(_EGL_INFO, "found extension %s version %d",
459 extensions[i]->name, extensions[i]->version);
460 break;
461 }
462 }
463 }
464
465 for (int j = 0; matches[j].name; j++) {
466 field = ((char *) dri2_dpy + matches[j].offset);
467 if (*(const __DRIextension **) field == NULL) {
468 if (optional) {
469 _eglLog(_EGL_DEBUG, "did not find optional extension %s version %d",
470 matches[j].name, matches[j].version);
471 } else {
472 _eglLog(_EGL_WARNING, "did not find extension %s version %d",
473 matches[j].name, matches[j].version);
474 ret = EGL_FALSE;
475 }
476 }
477 }
478
479 return ret;
480 }
481
482 static const __DRIextension **
483 dri2_open_driver(_EGLDisplay *disp)
484 {
485 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
486 const __DRIextension **extensions = NULL;
487 char path[PATH_MAX], *search_paths, *next, *end;
488 char *get_extensions_name;
489 const __DRIextension **(*get_extensions)(void);
490
491 search_paths = NULL;
492 if (geteuid() == getuid()) {
493 /* don't allow setuid apps to use LIBGL_DRIVERS_PATH */
494 search_paths = getenv("LIBGL_DRIVERS_PATH");
495 }
496 if (search_paths == NULL)
497 search_paths = DEFAULT_DRIVER_DIR;
498
499 dri2_dpy->driver = NULL;
500 end = search_paths + strlen(search_paths);
501 for (char *p = search_paths; p < end; p = next + 1) {
502 int len;
503 next = strchr(p, ':');
504 if (next == NULL)
505 next = end;
506
507 len = next - p;
508 #if GLX_USE_TLS
509 snprintf(path, sizeof path,
510 "%.*s/tls/%s_dri.so", len, p, dri2_dpy->driver_name);
511 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
512 #endif
513 if (dri2_dpy->driver == NULL) {
514 snprintf(path, sizeof path,
515 "%.*s/%s_dri.so", len, p, dri2_dpy->driver_name);
516 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
517 if (dri2_dpy->driver == NULL)
518 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
519 }
520 /* not need continue to loop all paths once the driver is found */
521 if (dri2_dpy->driver != NULL)
522 break;
523 }
524
525 if (dri2_dpy->driver == NULL) {
526 _eglLog(_EGL_WARNING,
527 "DRI2: failed to open %s (search paths %s)",
528 dri2_dpy->driver_name, search_paths);
529 return NULL;
530 }
531
532 _eglLog(_EGL_DEBUG, "DRI2: dlopen(%s)", path);
533
534 get_extensions_name = loader_get_extensions_name(dri2_dpy->driver_name);
535 if (get_extensions_name) {
536 get_extensions = dlsym(dri2_dpy->driver, get_extensions_name);
537 if (get_extensions) {
538 extensions = get_extensions();
539 } else {
540 _eglLog(_EGL_DEBUG, "driver does not expose %s(): %s\n",
541 get_extensions_name, dlerror());
542 }
543 free(get_extensions_name);
544 }
545
546 if (!extensions)
547 extensions = dlsym(dri2_dpy->driver, __DRI_DRIVER_EXTENSIONS);
548 if (extensions == NULL) {
549 _eglLog(_EGL_WARNING,
550 "DRI2: driver exports no extensions (%s)", dlerror());
551 dlclose(dri2_dpy->driver);
552 }
553
554 return extensions;
555 }
556
557 EGLBoolean
558 dri2_load_driver_dri3(_EGLDisplay *disp)
559 {
560 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
561 const __DRIextension **extensions;
562
563 extensions = dri2_open_driver(disp);
564 if (!extensions)
565 return EGL_FALSE;
566
567 if (!dri2_bind_extensions(dri2_dpy, dri3_driver_extensions, extensions, false)) {
568 dlclose(dri2_dpy->driver);
569 return EGL_FALSE;
570 }
571 dri2_dpy->driver_extensions = extensions;
572
573 return EGL_TRUE;
574 }
575
576 EGLBoolean
577 dri2_load_driver(_EGLDisplay *disp)
578 {
579 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
580 const __DRIextension **extensions;
581
582 extensions = dri2_open_driver(disp);
583 if (!extensions)
584 return EGL_FALSE;
585
586 if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions, false)) {
587 dlclose(dri2_dpy->driver);
588 return EGL_FALSE;
589 }
590 dri2_dpy->driver_extensions = extensions;
591
592 return EGL_TRUE;
593 }
594
595 EGLBoolean
596 dri2_load_driver_swrast(_EGLDisplay *disp)
597 {
598 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
599 const __DRIextension **extensions;
600
601 extensions = dri2_open_driver(disp);
602 if (!extensions)
603 return EGL_FALSE;
604
605 if (!dri2_bind_extensions(dri2_dpy, swrast_driver_extensions, extensions, false)) {
606 dlclose(dri2_dpy->driver);
607 return EGL_FALSE;
608 }
609 dri2_dpy->driver_extensions = extensions;
610
611 return EGL_TRUE;
612 }
613
614 static unsigned
615 dri2_renderer_query_integer(struct dri2_egl_display *dri2_dpy, int param)
616 {
617 const __DRI2rendererQueryExtension *rendererQuery = dri2_dpy->rendererQuery;
618 unsigned int value = 0;
619
620 if (!rendererQuery ||
621 rendererQuery->queryInteger(dri2_dpy->dri_screen, param, &value) == -1)
622 return 0;
623
624 return value;
625 }
626
627 void
628 dri2_setup_screen(_EGLDisplay *disp)
629 {
630 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
631 unsigned int api_mask;
632
633 if (dri2_dpy->image_driver) {
634 api_mask = dri2_dpy->image_driver->getAPIMask(dri2_dpy->dri_screen);
635 } else if (dri2_dpy->dri2) {
636 api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
637 } else {
638 assert(dri2_dpy->swrast);
639 api_mask = 1 << __DRI_API_OPENGL |
640 1 << __DRI_API_GLES |
641 1 << __DRI_API_GLES2 |
642 1 << __DRI_API_GLES3;
643 }
644
645 disp->ClientAPIs = 0;
646 if ((api_mask & (1 <<__DRI_API_OPENGL)) && _eglIsApiValid(EGL_OPENGL_API))
647 disp->ClientAPIs |= EGL_OPENGL_BIT;
648 if ((api_mask & (1 << __DRI_API_GLES)) && _eglIsApiValid(EGL_OPENGL_ES_API))
649 disp->ClientAPIs |= EGL_OPENGL_ES_BIT;
650 if ((api_mask & (1 << __DRI_API_GLES2)) && _eglIsApiValid(EGL_OPENGL_ES_API))
651 disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
652 if ((api_mask & (1 << __DRI_API_GLES3)) && _eglIsApiValid(EGL_OPENGL_ES_API))
653 disp->ClientAPIs |= EGL_OPENGL_ES3_BIT_KHR;
654
655 assert(dri2_dpy->image_driver || dri2_dpy->dri2 || dri2_dpy->swrast);
656 disp->Extensions.KHR_no_config_context = EGL_TRUE;
657 disp->Extensions.KHR_surfaceless_context = EGL_TRUE;
658
659 if (dri2_renderer_query_integer(dri2_dpy,
660 __DRI2_RENDERER_HAS_FRAMEBUFFER_SRGB))
661 disp->Extensions.KHR_gl_colorspace = EGL_TRUE;
662
663 if (dri2_dpy->image_driver ||
664 (dri2_dpy->dri2 && dri2_dpy->dri2->base.version >= 3) ||
665 (dri2_dpy->swrast && dri2_dpy->swrast->base.version >= 3)) {
666 disp->Extensions.KHR_create_context = EGL_TRUE;
667
668 if (dri2_dpy->robustness)
669 disp->Extensions.EXT_create_context_robustness = EGL_TRUE;
670 }
671
672 if (dri2_dpy->no_error)
673 disp->Extensions.KHR_create_context_no_error = EGL_TRUE;
674
675 if (dri2_dpy->fence) {
676 disp->Extensions.KHR_fence_sync = EGL_TRUE;
677 disp->Extensions.KHR_wait_sync = EGL_TRUE;
678 if (dri2_dpy->fence->get_fence_from_cl_event)
679 disp->Extensions.KHR_cl_event2 = EGL_TRUE;
680 if (dri2_dpy->fence->base.version >= 2 &&
681 dri2_dpy->fence->get_capabilities) {
682 unsigned capabilities =
683 dri2_dpy->fence->get_capabilities(dri2_dpy->dri_screen);
684 disp->Extensions.ANDROID_native_fence_sync =
685 (capabilities & __DRI_FENCE_CAP_NATIVE_FD) != 0;
686 }
687 }
688
689 disp->Extensions.KHR_reusable_sync = EGL_TRUE;
690
691 if (dri2_dpy->image) {
692 if (dri2_dpy->image->base.version >= 10 &&
693 dri2_dpy->image->getCapabilities != NULL) {
694 int capabilities;
695
696 capabilities = dri2_dpy->image->getCapabilities(dri2_dpy->dri_screen);
697 disp->Extensions.MESA_drm_image = (capabilities & __DRI_IMAGE_CAP_GLOBAL_NAMES) != 0;
698
699 if (dri2_dpy->image->base.version >= 11)
700 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
701 } else {
702 disp->Extensions.MESA_drm_image = EGL_TRUE;
703 if (dri2_dpy->image->base.version >= 11)
704 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
705 }
706
707 disp->Extensions.KHR_image_base = EGL_TRUE;
708 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
709 if (dri2_dpy->image->base.version >= 5 &&
710 dri2_dpy->image->createImageFromTexture) {
711 disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
712 disp->Extensions.KHR_gl_texture_cubemap_image = EGL_TRUE;
713
714 if (dri2_renderer_query_integer(dri2_dpy,
715 __DRI2_RENDERER_HAS_TEXTURE_3D))
716 disp->Extensions.KHR_gl_texture_3D_image = EGL_TRUE;
717 }
718 #ifdef HAVE_LIBDRM
719 if (dri2_dpy->image->base.version >= 8 &&
720 dri2_dpy->image->createImageFromDmaBufs) {
721 disp->Extensions.EXT_image_dma_buf_import = EGL_TRUE;
722 }
723 if (dri2_dpy->image->base.version >= 15 &&
724 dri2_dpy->image->createImageFromDmaBufs2 &&
725 dri2_dpy->image->queryDmaBufFormats &&
726 dri2_dpy->image->queryDmaBufModifiers) {
727 disp->Extensions.EXT_image_dma_buf_import_modifiers = EGL_TRUE;
728 }
729 #endif
730 }
731 }
732
733 void
734 dri2_setup_swap_interval(_EGLDisplay *disp, int max_swap_interval)
735 {
736 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
737 GLint vblank_mode = DRI_CONF_VBLANK_DEF_INTERVAL_1;
738
739 /* Allow driconf to override applications.*/
740 if (dri2_dpy->config)
741 dri2_dpy->config->configQueryi(dri2_dpy->dri_screen,
742 "vblank_mode", &vblank_mode);
743 switch (vblank_mode) {
744 case DRI_CONF_VBLANK_NEVER:
745 dri2_dpy->min_swap_interval = 0;
746 dri2_dpy->max_swap_interval = 0;
747 dri2_dpy->default_swap_interval = 0;
748 break;
749 case DRI_CONF_VBLANK_ALWAYS_SYNC:
750 dri2_dpy->min_swap_interval = 1;
751 dri2_dpy->max_swap_interval = max_swap_interval;
752 dri2_dpy->default_swap_interval = 1;
753 break;
754 case DRI_CONF_VBLANK_DEF_INTERVAL_0:
755 dri2_dpy->min_swap_interval = 0;
756 dri2_dpy->max_swap_interval = max_swap_interval;
757 dri2_dpy->default_swap_interval = 0;
758 break;
759 default:
760 case DRI_CONF_VBLANK_DEF_INTERVAL_1:
761 dri2_dpy->min_swap_interval = 0;
762 dri2_dpy->max_swap_interval = max_swap_interval;
763 dri2_dpy->default_swap_interval = 1;
764 break;
765 }
766 }
767
768 /* All platforms but DRM call this function to create the screen and populate
769 * the driver_configs. DRM inherits that information from its display - GBM.
770 */
771 EGLBoolean
772 dri2_create_screen(_EGLDisplay *disp)
773 {
774 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
775
776 if (dri2_dpy->image_driver) {
777 dri2_dpy->dri_screen =
778 dri2_dpy->image_driver->createNewScreen2(0, dri2_dpy->fd,
779 dri2_dpy->loader_extensions,
780 dri2_dpy->driver_extensions,
781 &dri2_dpy->driver_configs,
782 disp);
783 } else if (dri2_dpy->dri2) {
784 if (dri2_dpy->dri2->base.version >= 4) {
785 dri2_dpy->dri_screen =
786 dri2_dpy->dri2->createNewScreen2(0, dri2_dpy->fd,
787 dri2_dpy->loader_extensions,
788 dri2_dpy->driver_extensions,
789 &dri2_dpy->driver_configs, disp);
790 } else {
791 dri2_dpy->dri_screen =
792 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd,
793 dri2_dpy->loader_extensions,
794 &dri2_dpy->driver_configs, disp);
795 }
796 } else {
797 assert(dri2_dpy->swrast);
798 if (dri2_dpy->swrast->base.version >= 4) {
799 dri2_dpy->dri_screen =
800 dri2_dpy->swrast->createNewScreen2(0, dri2_dpy->loader_extensions,
801 dri2_dpy->driver_extensions,
802 &dri2_dpy->driver_configs, disp);
803 } else {
804 dri2_dpy->dri_screen =
805 dri2_dpy->swrast->createNewScreen(0, dri2_dpy->loader_extensions,
806 &dri2_dpy->driver_configs, disp);
807 }
808 }
809
810 if (dri2_dpy->dri_screen == NULL) {
811 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
812 return EGL_FALSE;
813 }
814
815 dri2_dpy->own_dri_screen = true;
816 return EGL_TRUE;
817 }
818
819 EGLBoolean
820 dri2_setup_extensions(_EGLDisplay *disp)
821 {
822 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
823 const struct dri2_extension_match *mandatory_core_extensions;
824 const __DRIextension **extensions;
825
826 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
827
828 if (dri2_dpy->image_driver || dri2_dpy->dri2)
829 mandatory_core_extensions = dri2_core_extensions;
830 else
831 mandatory_core_extensions = swrast_core_extensions;
832
833 if (!dri2_bind_extensions(dri2_dpy, mandatory_core_extensions, extensions, false))
834 return EGL_FALSE;
835
836 dri2_bind_extensions(dri2_dpy, optional_core_extensions, extensions, true);
837 return EGL_TRUE;
838 }
839
840 /**
841 * Called via eglInitialize(), GLX_drv->API.Initialize().
842 *
843 * This must be guaranteed to be called exactly once, even if eglInitialize is
844 * called many times (without a eglTerminate in between).
845 */
846 static EGLBoolean
847 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
848 {
849 EGLBoolean ret = EGL_FALSE;
850 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
851
852 /* In the case where the application calls eglMakeCurrent(context1),
853 * eglTerminate, then eglInitialize again (without a call to eglReleaseThread
854 * or eglMakeCurrent(NULL) before that), dri2_dpy structure is still
855 * initialized, as we need it to be able to free context1 correctly.
856 *
857 * It would probably be safest to forcibly release the display with
858 * dri2_display_release, to make sure the display is reinitialized correctly.
859 * However, the EGL spec states that we need to keep a reference to the
860 * current context (so we cannot call dri2_make_current(NULL)), and therefore
861 * we would leak context1 as we would be missing the old display connection
862 * to free it up correctly.
863 */
864 if (dri2_dpy) {
865 dri2_dpy->ref_count++;
866 return EGL_TRUE;
867 }
868
869 /* not until swrast_dri is supported */
870 if (disp->Options.UseFallback)
871 return EGL_FALSE;
872
873 /* Nothing to initialize for a test only display */
874 if (disp->Options.TestOnly)
875 return EGL_TRUE;
876
877 switch (disp->Platform) {
878 #ifdef HAVE_SURFACELESS_PLATFORM
879 case _EGL_PLATFORM_SURFACELESS:
880 ret = dri2_initialize_surfaceless(drv, disp);
881 break;
882 #endif
883 #ifdef HAVE_X11_PLATFORM
884 case _EGL_PLATFORM_X11:
885 ret = dri2_initialize_x11(drv, disp);
886 break;
887 #endif
888 #ifdef HAVE_DRM_PLATFORM
889 case _EGL_PLATFORM_DRM:
890 ret = dri2_initialize_drm(drv, disp);
891 break;
892 #endif
893 #ifdef HAVE_WAYLAND_PLATFORM
894 case _EGL_PLATFORM_WAYLAND:
895 ret = dri2_initialize_wayland(drv, disp);
896 break;
897 #endif
898 #ifdef HAVE_ANDROID_PLATFORM
899 case _EGL_PLATFORM_ANDROID:
900 ret = dri2_initialize_android(drv, disp);
901 break;
902 #endif
903 default:
904 _eglLog(_EGL_WARNING, "No EGL platform enabled.");
905 return EGL_FALSE;
906 }
907
908 if (!ret)
909 return EGL_FALSE;
910
911 dri2_dpy = dri2_egl_display(disp);
912 dri2_dpy->ref_count++;
913
914 return EGL_TRUE;
915 }
916
917 /**
918 * Decrement display reference count, and free up display if necessary.
919 */
920 static void
921 dri2_display_release(_EGLDisplay *disp)
922 {
923 struct dri2_egl_display *dri2_dpy;
924
925 if (!disp)
926 return;
927
928 dri2_dpy = dri2_egl_display(disp);
929
930 assert(dri2_dpy->ref_count > 0);
931 dri2_dpy->ref_count--;
932
933 if (dri2_dpy->ref_count > 0)
934 return;
935
936 _eglCleanupDisplay(disp);
937 dri2_display_destroy(disp);
938 }
939
940 void
941 dri2_display_destroy(_EGLDisplay *disp)
942 {
943 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
944
945 if (dri2_dpy->own_dri_screen) {
946 if (dri2_dpy->vtbl->close_screen_notify)
947 dri2_dpy->vtbl->close_screen_notify(disp);
948 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
949 }
950 if (dri2_dpy->fd >= 0)
951 close(dri2_dpy->fd);
952 if (dri2_dpy->driver)
953 dlclose(dri2_dpy->driver);
954 free(dri2_dpy->driver_name);
955
956 #ifdef HAVE_WAYLAND_PLATFORM
957 free(dri2_dpy->device_name);
958 #endif
959
960 switch (disp->Platform) {
961 #ifdef HAVE_X11_PLATFORM
962 case _EGL_PLATFORM_X11:
963 if (dri2_dpy->own_device) {
964 xcb_disconnect(dri2_dpy->conn);
965 }
966 break;
967 #endif
968 #ifdef HAVE_DRM_PLATFORM
969 case _EGL_PLATFORM_DRM:
970 if (dri2_dpy->own_device) {
971 gbm_device_destroy(&dri2_dpy->gbm_dri->base);
972 }
973 break;
974 #endif
975 #ifdef HAVE_WAYLAND_PLATFORM
976 case _EGL_PLATFORM_WAYLAND:
977 if (dri2_dpy->wl_drm)
978 wl_drm_destroy(dri2_dpy->wl_drm);
979 if (dri2_dpy->wl_dmabuf)
980 zwp_linux_dmabuf_v1_destroy(dri2_dpy->wl_dmabuf);
981 if (dri2_dpy->wl_shm)
982 wl_shm_destroy(dri2_dpy->wl_shm);
983 wl_registry_destroy(dri2_dpy->wl_registry);
984 wl_event_queue_destroy(dri2_dpy->wl_queue);
985 wl_proxy_wrapper_destroy(dri2_dpy->wl_dpy_wrapper);
986 u_vector_finish(&dri2_dpy->wl_modifiers.argb8888);
987 u_vector_finish(&dri2_dpy->wl_modifiers.xrgb8888);
988 u_vector_finish(&dri2_dpy->wl_modifiers.rgb565);
989 if (dri2_dpy->own_device) {
990 wl_display_disconnect(dri2_dpy->wl_dpy);
991 }
992 break;
993 #endif
994 default:
995 break;
996 }
997
998 /* The drm platform does not create the screen/driver_configs but reuses
999 * the ones from the gbm device. As such the gbm itself is responsible
1000 * for the cleanup.
1001 */
1002 if (disp->Platform != _EGL_PLATFORM_DRM && dri2_dpy->driver_configs) {
1003 for (unsigned i = 0; dri2_dpy->driver_configs[i]; i++)
1004 free((__DRIconfig *) dri2_dpy->driver_configs[i]);
1005 free(dri2_dpy->driver_configs);
1006 }
1007 free(dri2_dpy);
1008 disp->DriverData = NULL;
1009 }
1010
1011 __DRIbuffer *
1012 dri2_egl_surface_alloc_local_buffer(struct dri2_egl_surface *dri2_surf,
1013 unsigned int att, unsigned int format)
1014 {
1015 struct dri2_egl_display *dri2_dpy =
1016 dri2_egl_display(dri2_surf->base.Resource.Display);
1017
1018 if (att >= ARRAY_SIZE(dri2_surf->local_buffers))
1019 return NULL;
1020
1021 if (!dri2_surf->local_buffers[att]) {
1022 dri2_surf->local_buffers[att] =
1023 dri2_dpy->dri2->allocateBuffer(dri2_dpy->dri_screen, att, format,
1024 dri2_surf->base.Width, dri2_surf->base.Height);
1025 }
1026
1027 return dri2_surf->local_buffers[att];
1028 }
1029
1030 void
1031 dri2_egl_surface_free_local_buffers(struct dri2_egl_surface *dri2_surf)
1032 {
1033 struct dri2_egl_display *dri2_dpy =
1034 dri2_egl_display(dri2_surf->base.Resource.Display);
1035
1036 for (int i = 0; i < ARRAY_SIZE(dri2_surf->local_buffers); i++) {
1037 if (dri2_surf->local_buffers[i]) {
1038 dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
1039 dri2_surf->local_buffers[i]);
1040 dri2_surf->local_buffers[i] = NULL;
1041 }
1042 }
1043 }
1044
1045 /**
1046 * Called via eglTerminate(), drv->API.Terminate().
1047 *
1048 * This must be guaranteed to be called exactly once, even if eglTerminate is
1049 * called many times (without a eglInitialize in between).
1050 */
1051 static EGLBoolean
1052 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
1053 {
1054 /* Release all non-current Context/Surfaces. */
1055 _eglReleaseDisplayResources(drv, disp);
1056
1057 dri2_display_release(disp);
1058
1059 return EGL_TRUE;
1060 }
1061
1062 /**
1063 * Set the error code after a call to
1064 * dri2_egl_display::dri2::createContextAttribs.
1065 */
1066 static void
1067 dri2_create_context_attribs_error(int dri_error)
1068 {
1069 EGLint egl_error;
1070
1071 switch (dri_error) {
1072 case __DRI_CTX_ERROR_SUCCESS:
1073 return;
1074
1075 case __DRI_CTX_ERROR_NO_MEMORY:
1076 egl_error = EGL_BAD_ALLOC;
1077 break;
1078
1079 /* From the EGL_KHR_create_context spec, section "Errors":
1080 *
1081 * * If <config> does not support a client API context compatible
1082 * with the requested API major and minor version, [...] context flags,
1083 * and context reset notification behavior (for client API types where
1084 * these attributes are supported), then an EGL_BAD_MATCH error is
1085 * generated.
1086 *
1087 * * If an OpenGL ES context is requested and the values for
1088 * attributes EGL_CONTEXT_MAJOR_VERSION_KHR and
1089 * EGL_CONTEXT_MINOR_VERSION_KHR specify an OpenGL ES version that
1090 * is not defined, than an EGL_BAD_MATCH error is generated.
1091 *
1092 * * If an OpenGL context is requested, the requested version is
1093 * greater than 3.2, and the value for attribute
1094 * EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR has no bits set; has any
1095 * bits set other than EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR and
1096 * EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR; has more than
1097 * one of these bits set; or if the implementation does not support
1098 * the requested profile, then an EGL_BAD_MATCH error is generated.
1099 */
1100 case __DRI_CTX_ERROR_BAD_API:
1101 case __DRI_CTX_ERROR_BAD_VERSION:
1102 case __DRI_CTX_ERROR_BAD_FLAG:
1103 egl_error = EGL_BAD_MATCH;
1104 break;
1105
1106 /* From the EGL_KHR_create_context spec, section "Errors":
1107 *
1108 * * If an attribute name or attribute value in <attrib_list> is not
1109 * recognized (including unrecognized bits in bitmask attributes),
1110 * then an EGL_BAD_ATTRIBUTE error is generated."
1111 */
1112 case __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE:
1113 case __DRI_CTX_ERROR_UNKNOWN_FLAG:
1114 egl_error = EGL_BAD_ATTRIBUTE;
1115 break;
1116
1117 default:
1118 assert(0);
1119 egl_error = EGL_BAD_MATCH;
1120 break;
1121 }
1122
1123 _eglError(egl_error, "dri2_create_context");
1124 }
1125
1126 static bool
1127 dri2_fill_context_attribs(struct dri2_egl_context *dri2_ctx,
1128 struct dri2_egl_display *dri2_dpy,
1129 uint32_t *ctx_attribs,
1130 unsigned *num_attribs)
1131 {
1132 int pos = 0;
1133
1134 assert(*num_attribs >= 8);
1135
1136 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MAJOR_VERSION;
1137 ctx_attribs[pos++] = dri2_ctx->base.ClientMajorVersion;
1138 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MINOR_VERSION;
1139 ctx_attribs[pos++] = dri2_ctx->base.ClientMinorVersion;
1140
1141 if (dri2_ctx->base.Flags != 0 || dri2_ctx->base.NoError) {
1142 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1143 * extension, don't even try to send it the robust-access flag.
1144 * It may explode. Instead, generate the required EGL error here.
1145 */
1146 if ((dri2_ctx->base.Flags & EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR) != 0
1147 && !dri2_dpy->robustness) {
1148 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1149 return false;
1150 }
1151
1152 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_FLAGS;
1153 ctx_attribs[pos++] = dri2_ctx->base.Flags |
1154 (dri2_ctx->base.NoError ? __DRI_CTX_FLAG_NO_ERROR : 0);
1155 }
1156
1157 if (dri2_ctx->base.ResetNotificationStrategy != EGL_NO_RESET_NOTIFICATION_KHR) {
1158 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1159 * extension, don't even try to send it a reset strategy. It may
1160 * explode. Instead, generate the required EGL error here.
1161 */
1162 if (!dri2_dpy->robustness) {
1163 _eglError(EGL_BAD_CONFIG, "eglCreateContext");
1164 return false;
1165 }
1166
1167 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_RESET_STRATEGY;
1168 ctx_attribs[pos++] = __DRI_CTX_RESET_LOSE_CONTEXT;
1169 }
1170
1171 *num_attribs = pos;
1172
1173 return true;
1174 }
1175
1176 /**
1177 * Called via eglCreateContext(), drv->API.CreateContext().
1178 */
1179 static _EGLContext *
1180 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
1181 _EGLContext *share_list, const EGLint *attrib_list)
1182 {
1183 struct dri2_egl_context *dri2_ctx;
1184 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1185 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
1186 __DRIcontext *shared =
1187 dri2_ctx_shared ? dri2_ctx_shared->dri_context : NULL;
1188 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
1189 const __DRIconfig *dri_config;
1190 int api;
1191
1192 (void) drv;
1193
1194 dri2_ctx = malloc(sizeof *dri2_ctx);
1195 if (!dri2_ctx) {
1196 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
1197 return NULL;
1198 }
1199
1200 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
1201 goto cleanup;
1202
1203 /* The EGL_EXT_create_context_robustness spec says:
1204 *
1205 * "Add to the eglCreateContext context creation errors: [...]
1206 *
1207 * * If the reset notification behavior of <share_context> and the
1208 * newly created context are different then an EGL_BAD_MATCH error is
1209 * generated."
1210 */
1211 if (share_list && share_list->ResetNotificationStrategy !=
1212 dri2_ctx->base.ResetNotificationStrategy) {
1213 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1214 goto cleanup;
1215 }
1216
1217 /* The EGL_KHR_create_context_no_error spec says:
1218 *
1219 * "BAD_MATCH is generated if the value of EGL_CONTEXT_OPENGL_NO_ERROR_KHR
1220 * used to create <share_context> does not match the value of
1221 * EGL_CONTEXT_OPENGL_NO_ERROR_KHR for the context being created."
1222 */
1223 if (share_list && share_list->NoError != dri2_ctx->base.NoError) {
1224 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1225 goto cleanup;
1226 }
1227
1228 switch (dri2_ctx->base.ClientAPI) {
1229 case EGL_OPENGL_ES_API:
1230 switch (dri2_ctx->base.ClientMajorVersion) {
1231 case 1:
1232 api = __DRI_API_GLES;
1233 break;
1234 case 2:
1235 api = __DRI_API_GLES2;
1236 break;
1237 case 3:
1238 api = __DRI_API_GLES3;
1239 break;
1240 default:
1241 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1242 free(dri2_ctx);
1243 return NULL;
1244 }
1245 break;
1246 case EGL_OPENGL_API:
1247 if ((dri2_ctx->base.ClientMajorVersion >= 4
1248 || (dri2_ctx->base.ClientMajorVersion == 3
1249 && dri2_ctx->base.ClientMinorVersion >= 2))
1250 && dri2_ctx->base.Profile == EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR)
1251 api = __DRI_API_OPENGL_CORE;
1252 else
1253 api = __DRI_API_OPENGL;
1254 break;
1255 default:
1256 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1257 free(dri2_ctx);
1258 return NULL;
1259 }
1260
1261 if (conf != NULL) {
1262 /* The config chosen here isn't necessarily
1263 * used for surfaces later.
1264 * A pixmap surface will use the single config.
1265 * This opportunity depends on disabling the
1266 * doubleBufferMode check in
1267 * src/mesa/main/context.c:check_compatible()
1268 */
1269 if (dri2_config->dri_config[1][0])
1270 dri_config = dri2_config->dri_config[1][0];
1271 else
1272 dri_config = dri2_config->dri_config[0][0];
1273
1274 /* EGL_WINDOW_BIT is set only when there is a double-buffered dri_config.
1275 * This makes sure the back buffer will always be used.
1276 */
1277 if (conf->SurfaceType & EGL_WINDOW_BIT)
1278 dri2_ctx->base.WindowRenderBuffer = EGL_BACK_BUFFER;
1279 }
1280 else
1281 dri_config = NULL;
1282
1283 if (dri2_dpy->image_driver) {
1284 unsigned error;
1285 unsigned num_attribs = 8;
1286 uint32_t ctx_attribs[8];
1287
1288 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1289 &num_attribs))
1290 goto cleanup;
1291
1292 dri2_ctx->dri_context =
1293 dri2_dpy->image_driver->createContextAttribs(dri2_dpy->dri_screen,
1294 api,
1295 dri_config,
1296 shared,
1297 num_attribs / 2,
1298 ctx_attribs,
1299 & error,
1300 dri2_ctx);
1301 dri2_create_context_attribs_error(error);
1302 } else if (dri2_dpy->dri2) {
1303 if (dri2_dpy->dri2->base.version >= 3) {
1304 unsigned error;
1305 unsigned num_attribs = 8;
1306 uint32_t ctx_attribs[8];
1307
1308 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1309 &num_attribs))
1310 goto cleanup;
1311
1312 dri2_ctx->dri_context =
1313 dri2_dpy->dri2->createContextAttribs(dri2_dpy->dri_screen,
1314 api,
1315 dri_config,
1316 shared,
1317 num_attribs / 2,
1318 ctx_attribs,
1319 & error,
1320 dri2_ctx);
1321 dri2_create_context_attribs_error(error);
1322 } else {
1323 dri2_ctx->dri_context =
1324 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
1325 api,
1326 dri_config,
1327 shared,
1328 dri2_ctx);
1329 }
1330 } else {
1331 assert(dri2_dpy->swrast);
1332 if (dri2_dpy->swrast->base.version >= 3) {
1333 unsigned error;
1334 unsigned num_attribs = 8;
1335 uint32_t ctx_attribs[8];
1336
1337 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1338 &num_attribs))
1339 goto cleanup;
1340
1341 dri2_ctx->dri_context =
1342 dri2_dpy->swrast->createContextAttribs(dri2_dpy->dri_screen,
1343 api,
1344 dri_config,
1345 shared,
1346 num_attribs / 2,
1347 ctx_attribs,
1348 & error,
1349 dri2_ctx);
1350 dri2_create_context_attribs_error(error);
1351 } else {
1352 dri2_ctx->dri_context =
1353 dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
1354 api,
1355 dri_config,
1356 shared,
1357 dri2_ctx);
1358 }
1359 }
1360
1361 if (!dri2_ctx->dri_context)
1362 goto cleanup;
1363
1364 return &dri2_ctx->base;
1365
1366 cleanup:
1367 free(dri2_ctx);
1368 return NULL;
1369 }
1370
1371 /**
1372 * Called via eglDestroyContext(), drv->API.DestroyContext().
1373 */
1374 static EGLBoolean
1375 dri2_destroy_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1376 {
1377 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1378 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1379
1380 if (_eglPutContext(ctx)) {
1381 dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
1382 free(dri2_ctx);
1383 }
1384
1385 return EGL_TRUE;
1386 }
1387
1388 static EGLBoolean
1389 dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1390 {
1391 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1392
1393 if (!_eglPutSurface(surf))
1394 return EGL_TRUE;
1395
1396 return dri2_dpy->vtbl->destroy_surface(drv, dpy, surf);
1397 }
1398
1399 /**
1400 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
1401 */
1402 static EGLBoolean
1403 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
1404 _EGLSurface *rsurf, _EGLContext *ctx)
1405 {
1406 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1407 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1408 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1409 _EGLContext *old_ctx;
1410 _EGLSurface *old_dsurf, *old_rsurf;
1411 _EGLSurface *tmp_dsurf, *tmp_rsurf;
1412 __DRIdrawable *ddraw, *rdraw;
1413 __DRIcontext *cctx;
1414 EGLBoolean unbind;
1415
1416 if (!dri2_dpy)
1417 return _eglError(EGL_NOT_INITIALIZED, "eglMakeCurrent");
1418
1419 /* make new bindings */
1420 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf)) {
1421 /* _eglBindContext already sets the EGL error (in _eglCheckMakeCurrent) */
1422 return EGL_FALSE;
1423 }
1424
1425 /* flush before context switch */
1426 if (old_ctx)
1427 dri2_drv->glFlush();
1428
1429 ddraw = (dsurf) ? dri2_dpy->vtbl->get_dri_drawable(dsurf) : NULL;
1430 rdraw = (rsurf) ? dri2_dpy->vtbl->get_dri_drawable(rsurf) : NULL;
1431 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
1432
1433 if (old_ctx) {
1434 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
1435 dri2_dpy->core->unbindContext(old_cctx);
1436 }
1437
1438 unbind = (cctx == NULL && ddraw == NULL && rdraw == NULL);
1439
1440 if (unbind || dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
1441 dri2_destroy_surface(drv, disp, old_dsurf);
1442 dri2_destroy_surface(drv, disp, old_rsurf);
1443
1444 if (!unbind)
1445 dri2_dpy->ref_count++;
1446 if (old_ctx) {
1447 EGLDisplay old_disp = _eglGetDisplayHandle(old_ctx->Resource.Display);
1448 dri2_destroy_context(drv, disp, old_ctx);
1449 dri2_display_release(old_disp);
1450 }
1451
1452 return EGL_TRUE;
1453 } else {
1454 /* undo the previous _eglBindContext */
1455 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &tmp_dsurf, &tmp_rsurf);
1456 assert(&dri2_ctx->base == ctx &&
1457 tmp_dsurf == dsurf &&
1458 tmp_rsurf == rsurf);
1459
1460 _eglPutSurface(dsurf);
1461 _eglPutSurface(rsurf);
1462 _eglPutContext(ctx);
1463
1464 _eglPutSurface(old_dsurf);
1465 _eglPutSurface(old_rsurf);
1466 _eglPutContext(old_ctx);
1467
1468 /* dri2_dpy->core->bindContext failed. We cannot tell for sure why, but
1469 * setting the error to EGL_BAD_MATCH is surely better than leaving it
1470 * as EGL_SUCCESS.
1471 */
1472 return _eglError(EGL_BAD_MATCH, "eglMakeCurrent");
1473 }
1474 }
1475
1476 __DRIdrawable *
1477 dri2_surface_get_dri_drawable(_EGLSurface *surf)
1478 {
1479 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1480
1481 return dri2_surf->dri_drawable;
1482 }
1483
1484 /*
1485 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
1486 */
1487 static _EGLProc
1488 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
1489 {
1490 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1491
1492 return dri2_drv->get_proc_address(procname);
1493 }
1494
1495 static _EGLSurface*
1496 dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1497 _EGLConfig *conf, void *native_window,
1498 const EGLint *attrib_list)
1499 {
1500 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1501 return dri2_dpy->vtbl->create_window_surface(drv, dpy, conf, native_window,
1502 attrib_list);
1503 }
1504
1505 static _EGLSurface*
1506 dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1507 _EGLConfig *conf, void *native_pixmap,
1508 const EGLint *attrib_list)
1509 {
1510 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1511 return dri2_dpy->vtbl->create_pixmap_surface(drv, dpy, conf, native_pixmap,
1512 attrib_list);
1513 }
1514
1515 static _EGLSurface*
1516 dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1517 _EGLConfig *conf, const EGLint *attrib_list)
1518 {
1519 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1520 return dri2_dpy->vtbl->create_pbuffer_surface(drv, dpy, conf, attrib_list);
1521 }
1522
1523 static EGLBoolean
1524 dri2_swap_interval(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1525 EGLint interval)
1526 {
1527 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1528 if (!dri2_dpy->vtbl->swap_interval)
1529 return EGL_TRUE;
1530 return dri2_dpy->vtbl->swap_interval(drv, dpy, surf, interval);
1531 }
1532
1533 /**
1534 * Asks the client API to flush any rendering to the drawable so that we can
1535 * do our swapbuffers.
1536 */
1537 void
1538 dri2_flush_drawable_for_swapbuffers(_EGLDisplay *disp, _EGLSurface *draw)
1539 {
1540 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1541 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(draw);
1542
1543 if (dri2_dpy->flush) {
1544 if (dri2_dpy->flush->base.version >= 4) {
1545 /* We know there's a current context because:
1546 *
1547 * "If surface is not bound to the calling thread’s current
1548 * context, an EGL_BAD_SURFACE error is generated."
1549 */
1550 _EGLContext *ctx = _eglGetCurrentContext();
1551 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1552
1553 /* From the EGL 1.4 spec (page 52):
1554 *
1555 * "The contents of ancillary buffers are always undefined
1556 * after calling eglSwapBuffers."
1557 */
1558 dri2_dpy->flush->flush_with_flags(dri2_ctx->dri_context,
1559 dri_drawable,
1560 __DRI2_FLUSH_DRAWABLE |
1561 __DRI2_FLUSH_INVALIDATE_ANCILLARY,
1562 __DRI2_THROTTLE_SWAPBUFFER);
1563 } else {
1564 dri2_dpy->flush->flush(dri_drawable);
1565 }
1566 }
1567 }
1568
1569 static EGLBoolean
1570 dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1571 {
1572 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1573 return dri2_dpy->vtbl->swap_buffers(drv, dpy, surf);
1574 }
1575
1576 static EGLBoolean
1577 dri2_swap_buffers_with_damage(_EGLDriver *drv, _EGLDisplay *dpy,
1578 _EGLSurface *surf,
1579 const EGLint *rects, EGLint n_rects)
1580 {
1581 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1582 return dri2_dpy->vtbl->swap_buffers_with_damage(drv, dpy, surf,
1583 rects, n_rects);
1584 }
1585
1586 static EGLBoolean
1587 dri2_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1588 EGLint numRects, const EGLint *rects)
1589 {
1590 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1591 return dri2_dpy->vtbl->swap_buffers_region(drv, dpy, surf, numRects, rects);
1592 }
1593
1594 static EGLBoolean
1595 dri2_set_damage_region(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1596 EGLint *rects, EGLint n_rects)
1597 {
1598 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1599 return dri2_dpy->vtbl->set_damage_region(drv, dpy, surf, rects, n_rects);
1600 }
1601
1602 static EGLBoolean
1603 dri2_post_sub_buffer(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1604 EGLint x, EGLint y, EGLint width, EGLint height)
1605 {
1606 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1607 return dri2_dpy->vtbl->post_sub_buffer(drv, dpy, surf, x, y, width, height);
1608 }
1609
1610 static EGLBoolean
1611 dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1612 void *native_pixmap_target)
1613 {
1614 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1615 return dri2_dpy->vtbl->copy_buffers(drv, dpy, surf, native_pixmap_target);
1616 }
1617
1618 static EGLint
1619 dri2_query_buffer_age(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1620 {
1621 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1622 return dri2_dpy->vtbl->query_buffer_age(drv, dpy, surf);
1623 }
1624
1625 static EGLBoolean
1626 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1627 {
1628 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1629 _EGLSurface *surf = ctx->DrawSurface;
1630 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1631
1632 (void) drv;
1633
1634 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
1635 * we need to copy fake to real here.*/
1636
1637 if (dri2_dpy->flush != NULL)
1638 dri2_dpy->flush->flush(dri_drawable);
1639
1640 return EGL_TRUE;
1641 }
1642
1643 static EGLBoolean
1644 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
1645 {
1646 (void) drv;
1647 (void) disp;
1648
1649 if (engine != EGL_CORE_NATIVE_ENGINE)
1650 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
1651 /* glXWaitX(); */
1652
1653 return EGL_TRUE;
1654 }
1655
1656 static EGLBoolean
1657 dri2_bind_tex_image(_EGLDriver *drv,
1658 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1659 {
1660 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1661 struct dri2_egl_context *dri2_ctx;
1662 _EGLContext *ctx;
1663 GLint format, target;
1664 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1665
1666 ctx = _eglGetCurrentContext();
1667 dri2_ctx = dri2_egl_context(ctx);
1668
1669 if (!_eglBindTexImage(drv, disp, surf, buffer))
1670 return EGL_FALSE;
1671
1672 switch (surf->TextureFormat) {
1673 case EGL_TEXTURE_RGB:
1674 format = __DRI_TEXTURE_FORMAT_RGB;
1675 break;
1676 case EGL_TEXTURE_RGBA:
1677 format = __DRI_TEXTURE_FORMAT_RGBA;
1678 break;
1679 default:
1680 assert(!"Unexpected texture format in dri2_bind_tex_image()");
1681 format = __DRI_TEXTURE_FORMAT_RGBA;
1682 }
1683
1684 switch (surf->TextureTarget) {
1685 case EGL_TEXTURE_2D:
1686 target = GL_TEXTURE_2D;
1687 break;
1688 default:
1689 target = GL_TEXTURE_2D;
1690 assert(!"Unexpected texture target in dri2_bind_tex_image()");
1691 }
1692
1693 dri2_dpy->tex_buffer->setTexBuffer2(dri2_ctx->dri_context,
1694 target, format,
1695 dri_drawable);
1696
1697 return EGL_TRUE;
1698 }
1699
1700 static EGLBoolean
1701 dri2_release_tex_image(_EGLDriver *drv,
1702 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1703 {
1704 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1705 struct dri2_egl_context *dri2_ctx;
1706 _EGLContext *ctx;
1707 GLint target;
1708 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1709
1710 ctx = _eglGetCurrentContext();
1711 dri2_ctx = dri2_egl_context(ctx);
1712
1713 if (!_eglReleaseTexImage(drv, disp, surf, buffer))
1714 return EGL_FALSE;
1715
1716 switch (surf->TextureTarget) {
1717 case EGL_TEXTURE_2D:
1718 target = GL_TEXTURE_2D;
1719 break;
1720 default:
1721 assert(0);
1722 }
1723
1724 if (dri2_dpy->tex_buffer->base.version >= 3 &&
1725 dri2_dpy->tex_buffer->releaseTexBuffer != NULL) {
1726 dri2_dpy->tex_buffer->releaseTexBuffer(dri2_ctx->dri_context,
1727 target, dri_drawable);
1728 }
1729
1730 return EGL_TRUE;
1731 }
1732
1733 static _EGLImage*
1734 dri2_create_image(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx,
1735 EGLenum target, EGLClientBuffer buffer,
1736 const EGLint *attr_list)
1737 {
1738 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1739 return dri2_dpy->vtbl->create_image(drv, dpy, ctx, target, buffer,
1740 attr_list);
1741 }
1742
1743 static _EGLImage *
1744 dri2_create_image_from_dri(_EGLDisplay *disp, __DRIimage *dri_image)
1745 {
1746 struct dri2_egl_image *dri2_img;
1747
1748 if (dri_image == NULL) {
1749 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1750 return NULL;
1751 }
1752
1753 dri2_img = malloc(sizeof *dri2_img);
1754 if (!dri2_img) {
1755 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1756 return NULL;
1757 }
1758
1759 _eglInitImage(&dri2_img->base, disp);
1760
1761 dri2_img->dri_image = dri_image;
1762
1763 return &dri2_img->base;
1764 }
1765
1766 static _EGLImage *
1767 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
1768 EGLClientBuffer buffer,
1769 const EGLint *attr_list)
1770 {
1771 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1772 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1773 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
1774 __DRIimage *dri_image;
1775
1776 if (renderbuffer == 0) {
1777 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1778 return EGL_NO_IMAGE_KHR;
1779 }
1780
1781 if (!disp->Extensions.KHR_gl_renderbuffer_image) {
1782 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1783 return EGL_NO_IMAGE_KHR;
1784 }
1785
1786 dri_image =
1787 dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
1788 renderbuffer, NULL);
1789
1790 return dri2_create_image_from_dri(disp, dri_image);
1791 }
1792
1793 #ifdef HAVE_WAYLAND_PLATFORM
1794
1795 /* This structure describes how a wl_buffer maps to one or more
1796 * __DRIimages. A wl_drm_buffer stores the wl_drm format code and the
1797 * offsets and strides of the planes in the buffer. This table maps a
1798 * wl_drm format code to a description of the planes in the buffer
1799 * that lets us create a __DRIimage for each of the planes. */
1800
1801 static const struct wl_drm_components_descriptor {
1802 uint32_t dri_components;
1803 EGLint components;
1804 int nplanes;
1805 } wl_drm_components[] = {
1806 { __DRI_IMAGE_COMPONENTS_RGB, EGL_TEXTURE_RGB, 1 },
1807 { __DRI_IMAGE_COMPONENTS_RGBA, EGL_TEXTURE_RGBA, 1 },
1808 { __DRI_IMAGE_COMPONENTS_Y_U_V, EGL_TEXTURE_Y_U_V_WL, 3 },
1809 { __DRI_IMAGE_COMPONENTS_Y_UV, EGL_TEXTURE_Y_UV_WL, 2 },
1810 { __DRI_IMAGE_COMPONENTS_Y_XUXV, EGL_TEXTURE_Y_XUXV_WL, 2 },
1811 };
1812
1813 static _EGLImage *
1814 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1815 EGLClientBuffer _buffer,
1816 const EGLint *attr_list)
1817 {
1818 struct wl_drm_buffer *buffer;
1819 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1820 const struct wl_drm_components_descriptor *f;
1821 __DRIimage *dri_image;
1822 _EGLImageAttribs attrs;
1823 int32_t plane;
1824
1825 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm,
1826 (struct wl_resource *) _buffer);
1827 if (!buffer)
1828 return NULL;
1829
1830 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
1831 return NULL;
1832
1833 plane = attrs.PlaneWL;
1834 f = buffer->driver_format;
1835 if (plane < 0 || plane >= f->nplanes) {
1836 _eglError(EGL_BAD_PARAMETER,
1837 "dri2_create_image_wayland_wl_buffer (plane out of bounds)");
1838 return NULL;
1839 }
1840
1841 dri_image = dri2_dpy->image->fromPlanar(buffer->driver_buffer, plane, NULL);
1842
1843 if (dri_image == NULL) {
1844 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1845 return NULL;
1846 }
1847
1848 return dri2_create_image_from_dri(disp, dri_image);
1849 }
1850 #endif
1851
1852 static EGLBoolean
1853 dri2_get_sync_values_chromium(_EGLDisplay *dpy, _EGLSurface *surf,
1854 EGLuint64KHR *ust, EGLuint64KHR *msc,
1855 EGLuint64KHR *sbc)
1856 {
1857 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1858 return dri2_dpy->vtbl->get_sync_values(dpy, surf, ust, msc, sbc);
1859 }
1860
1861 /**
1862 * Set the error code after a call to
1863 * dri2_egl_image::dri_image::createImageFromTexture.
1864 */
1865 static void
1866 dri2_create_image_khr_texture_error(int dri_error)
1867 {
1868 EGLint egl_error;
1869
1870 switch (dri_error) {
1871 case __DRI_IMAGE_ERROR_SUCCESS:
1872 return;
1873
1874 case __DRI_IMAGE_ERROR_BAD_ALLOC:
1875 egl_error = EGL_BAD_ALLOC;
1876 break;
1877
1878 case __DRI_IMAGE_ERROR_BAD_MATCH:
1879 egl_error = EGL_BAD_MATCH;
1880 break;
1881
1882 case __DRI_IMAGE_ERROR_BAD_PARAMETER:
1883 egl_error = EGL_BAD_PARAMETER;
1884 break;
1885
1886 case __DRI_IMAGE_ERROR_BAD_ACCESS:
1887 egl_error = EGL_BAD_ACCESS;
1888 break;
1889
1890 default:
1891 assert(0);
1892 egl_error = EGL_BAD_MATCH;
1893 break;
1894 }
1895
1896 _eglError(egl_error, "dri2_create_image_khr_texture");
1897 }
1898
1899 static _EGLImage *
1900 dri2_create_image_khr_texture(_EGLDisplay *disp, _EGLContext *ctx,
1901 EGLenum target,
1902 EGLClientBuffer buffer,
1903 const EGLint *attr_list)
1904 {
1905 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1906 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1907 struct dri2_egl_image *dri2_img;
1908 GLuint texture = (GLuint) (uintptr_t) buffer;
1909 _EGLImageAttribs attrs;
1910 GLuint depth;
1911 GLenum gl_target;
1912 unsigned error;
1913
1914 if (texture == 0) {
1915 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1916 return EGL_NO_IMAGE_KHR;
1917 }
1918
1919 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
1920 return EGL_NO_IMAGE_KHR;
1921
1922 switch (target) {
1923 case EGL_GL_TEXTURE_2D_KHR:
1924 if (!disp->Extensions.KHR_gl_texture_2D_image) {
1925 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1926 return EGL_NO_IMAGE_KHR;
1927 }
1928 depth = 0;
1929 gl_target = GL_TEXTURE_2D;
1930 break;
1931 case EGL_GL_TEXTURE_3D_KHR:
1932 if (!disp->Extensions.KHR_gl_texture_3D_image) {
1933 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1934 return EGL_NO_IMAGE_KHR;
1935 }
1936
1937 depth = attrs.GLTextureZOffset;
1938 gl_target = GL_TEXTURE_3D;
1939 break;
1940 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
1941 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
1942 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
1943 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
1944 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
1945 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
1946 if (!disp->Extensions.KHR_gl_texture_cubemap_image) {
1947 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1948 return EGL_NO_IMAGE_KHR;
1949 }
1950
1951 depth = target - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR;
1952 gl_target = GL_TEXTURE_CUBE_MAP;
1953 break;
1954 default:
1955 unreachable("Unexpected target in dri2_create_image_khr_texture()");
1956 return EGL_NO_IMAGE_KHR;
1957 }
1958
1959 dri2_img = malloc(sizeof *dri2_img);
1960 if (!dri2_img) {
1961 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1962 return EGL_NO_IMAGE_KHR;
1963 }
1964
1965 _eglInitImage(&dri2_img->base, disp);
1966
1967 dri2_img->dri_image =
1968 dri2_dpy->image->createImageFromTexture(dri2_ctx->dri_context,
1969 gl_target,
1970 texture,
1971 depth,
1972 attrs.GLTextureLevel,
1973 &error,
1974 dri2_img);
1975 dri2_create_image_khr_texture_error(error);
1976
1977 if (!dri2_img->dri_image) {
1978 free(dri2_img);
1979 return EGL_NO_IMAGE_KHR;
1980 }
1981 return &dri2_img->base;
1982 }
1983
1984 static EGLBoolean
1985 dri2_query_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1986 EGLint attribute, EGLint *value)
1987 {
1988 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1989 if (!dri2_dpy->vtbl->query_surface)
1990 return _eglQuerySurface(drv, dpy, surf, attribute, value);
1991 return dri2_dpy->vtbl->query_surface(drv, dpy, surf, attribute, value);
1992 }
1993
1994 static struct wl_buffer*
1995 dri2_create_wayland_buffer_from_image(_EGLDriver *drv, _EGLDisplay *dpy,
1996 _EGLImage *img)
1997 {
1998 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1999 return dri2_dpy->vtbl->create_wayland_buffer_from_image(drv, dpy, img);
2000 }
2001
2002 #ifdef HAVE_LIBDRM
2003 static _EGLImage *
2004 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
2005 EGLClientBuffer buffer, const EGLint *attr_list)
2006 {
2007 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2008 EGLint format, name, pitch;
2009 _EGLImageAttribs attrs;
2010 __DRIimage *dri_image;
2011
2012 name = (EGLint) (uintptr_t) buffer;
2013
2014 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2015 return NULL;
2016
2017 if (attrs.Width <= 0 || attrs.Height <= 0 ||
2018 attrs.DRMBufferStrideMESA <= 0) {
2019 _eglError(EGL_BAD_PARAMETER,
2020 "bad width, height or stride");
2021 return NULL;
2022 }
2023
2024 switch (attrs.DRMBufferFormatMESA) {
2025 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2026 format = __DRI_IMAGE_FORMAT_ARGB8888;
2027 pitch = attrs.DRMBufferStrideMESA;
2028 break;
2029 default:
2030 _eglError(EGL_BAD_PARAMETER,
2031 "dri2_create_image_khr: unsupported pixmap depth");
2032 return NULL;
2033 }
2034
2035 dri_image =
2036 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
2037 attrs.Width,
2038 attrs.Height,
2039 format,
2040 name,
2041 pitch,
2042 NULL);
2043
2044 return dri2_create_image_from_dri(disp, dri_image);
2045 }
2046
2047 static EGLBoolean
2048 dri2_check_dma_buf_attribs(const _EGLImageAttribs *attrs)
2049 {
2050 /**
2051 * The spec says:
2052 *
2053 * "Required attributes and their values are as follows:
2054 *
2055 * * EGL_WIDTH & EGL_HEIGHT: The logical dimensions of the buffer in pixels
2056 *
2057 * * EGL_LINUX_DRM_FOURCC_EXT: The pixel format of the buffer, as specified
2058 * by drm_fourcc.h and used as the pixel_format parameter of the
2059 * drm_mode_fb_cmd2 ioctl."
2060 *
2061 * and
2062 *
2063 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
2064 * incomplete, EGL_BAD_PARAMETER is generated."
2065 */
2066 if (attrs->Width <= 0 || attrs->Height <= 0 ||
2067 !attrs->DMABufFourCC.IsPresent)
2068 return _eglError(EGL_BAD_PARAMETER, "attribute(s) missing");
2069
2070 /**
2071 * Also:
2072 *
2073 * "If <target> is EGL_LINUX_DMA_BUF_EXT and one or more of the values
2074 * specified for a plane's pitch or offset isn't supported by EGL,
2075 * EGL_BAD_ACCESS is generated."
2076 */
2077 for (unsigned i = 0; i < ARRAY_SIZE(attrs->DMABufPlanePitches); ++i) {
2078 if (attrs->DMABufPlanePitches[i].IsPresent &&
2079 attrs->DMABufPlanePitches[i].Value <= 0)
2080 return _eglError(EGL_BAD_ACCESS, "invalid pitch");
2081 }
2082
2083 /**
2084 * If <target> is EGL_LINUX_DMA_BUF_EXT, both or neither of the following
2085 * attribute values may be given.
2086 *
2087 * This is referring to EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT and
2088 * EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT, and the same for other planes.
2089 */
2090 for (unsigned i = 0; i < DMA_BUF_MAX_PLANES; ++i) {
2091 if (attrs->DMABufPlaneModifiersLo[i].IsPresent !=
2092 attrs->DMABufPlaneModifiersHi[i].IsPresent)
2093 return _eglError(EGL_BAD_PARAMETER, "modifier attribute lo or hi missing");
2094 }
2095
2096 /* Although the EGL_EXT_image_dma_buf_import_modifiers spec doesn't
2097 * mandate it, we only accept the same modifier across all planes. */
2098 for (unsigned i = 1; i < DMA_BUF_MAX_PLANES; ++i) {
2099 if (attrs->DMABufPlaneFds[i].IsPresent) {
2100 if ((attrs->DMABufPlaneModifiersLo[0].IsPresent !=
2101 attrs->DMABufPlaneModifiersLo[i].IsPresent) ||
2102 (attrs->DMABufPlaneModifiersLo[0].Value !=
2103 attrs->DMABufPlaneModifiersLo[i].Value) ||
2104 (attrs->DMABufPlaneModifiersHi[0].Value !=
2105 attrs->DMABufPlaneModifiersHi[i].Value))
2106 return _eglError(EGL_BAD_PARAMETER, "modifier attributes not equal");
2107 }
2108 }
2109
2110 return EGL_TRUE;
2111 }
2112
2113 /* Returns the total number of file descriptors. Zero indicates an error. */
2114 static unsigned
2115 dri2_check_dma_buf_format(const _EGLImageAttribs *attrs)
2116 {
2117 unsigned plane_n;
2118
2119 switch (attrs->DMABufFourCC.Value) {
2120 case DRM_FORMAT_R8:
2121 case DRM_FORMAT_RG88:
2122 case DRM_FORMAT_GR88:
2123 case DRM_FORMAT_R16:
2124 case DRM_FORMAT_GR1616:
2125 case DRM_FORMAT_RGB332:
2126 case DRM_FORMAT_BGR233:
2127 case DRM_FORMAT_XRGB4444:
2128 case DRM_FORMAT_XBGR4444:
2129 case DRM_FORMAT_RGBX4444:
2130 case DRM_FORMAT_BGRX4444:
2131 case DRM_FORMAT_ARGB4444:
2132 case DRM_FORMAT_ABGR4444:
2133 case DRM_FORMAT_RGBA4444:
2134 case DRM_FORMAT_BGRA4444:
2135 case DRM_FORMAT_XRGB1555:
2136 case DRM_FORMAT_XBGR1555:
2137 case DRM_FORMAT_RGBX5551:
2138 case DRM_FORMAT_BGRX5551:
2139 case DRM_FORMAT_ARGB1555:
2140 case DRM_FORMAT_ABGR1555:
2141 case DRM_FORMAT_RGBA5551:
2142 case DRM_FORMAT_BGRA5551:
2143 case DRM_FORMAT_RGB565:
2144 case DRM_FORMAT_BGR565:
2145 case DRM_FORMAT_RGB888:
2146 case DRM_FORMAT_BGR888:
2147 case DRM_FORMAT_XRGB8888:
2148 case DRM_FORMAT_XBGR8888:
2149 case DRM_FORMAT_RGBX8888:
2150 case DRM_FORMAT_BGRX8888:
2151 case DRM_FORMAT_ARGB8888:
2152 case DRM_FORMAT_ABGR8888:
2153 case DRM_FORMAT_RGBA8888:
2154 case DRM_FORMAT_BGRA8888:
2155 case DRM_FORMAT_XRGB2101010:
2156 case DRM_FORMAT_XBGR2101010:
2157 case DRM_FORMAT_RGBX1010102:
2158 case DRM_FORMAT_BGRX1010102:
2159 case DRM_FORMAT_ARGB2101010:
2160 case DRM_FORMAT_ABGR2101010:
2161 case DRM_FORMAT_RGBA1010102:
2162 case DRM_FORMAT_BGRA1010102:
2163 case DRM_FORMAT_YUYV:
2164 case DRM_FORMAT_YVYU:
2165 case DRM_FORMAT_UYVY:
2166 case DRM_FORMAT_VYUY:
2167 plane_n = 1;
2168 break;
2169 case DRM_FORMAT_NV12:
2170 case DRM_FORMAT_NV21:
2171 case DRM_FORMAT_NV16:
2172 case DRM_FORMAT_NV61:
2173 plane_n = 2;
2174 break;
2175 case DRM_FORMAT_YUV410:
2176 case DRM_FORMAT_YVU410:
2177 case DRM_FORMAT_YUV411:
2178 case DRM_FORMAT_YVU411:
2179 case DRM_FORMAT_YUV420:
2180 case DRM_FORMAT_YVU420:
2181 case DRM_FORMAT_YUV422:
2182 case DRM_FORMAT_YVU422:
2183 case DRM_FORMAT_YUV444:
2184 case DRM_FORMAT_YVU444:
2185 plane_n = 3;
2186 break;
2187 default:
2188 _eglError(EGL_BAD_ATTRIBUTE, "invalid format");
2189 return 0;
2190 }
2191
2192 for (unsigned i = plane_n; i < DMA_BUF_MAX_PLANES; i++) {
2193 /**
2194 * The modifiers extension spec says:
2195 *
2196 * "Modifiers may modify any attribute of a buffer import, including
2197 * but not limited to adding extra planes to a format which
2198 * otherwise does not have those planes. As an example, a modifier
2199 * may add a plane for an external compression buffer to a
2200 * single-plane format. The exact meaning and effect of any
2201 * modifier is canonically defined by drm_fourcc.h, not as part of
2202 * this extension."
2203 */
2204 if (attrs->DMABufPlaneModifiersLo[i].IsPresent &&
2205 attrs->DMABufPlaneModifiersHi[i].IsPresent) {
2206 plane_n = i + 1;
2207 }
2208 }
2209
2210 /**
2211 * The spec says:
2212 *
2213 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
2214 * incomplete, EGL_BAD_PARAMETER is generated."
2215 */
2216 for (unsigned i = 0; i < plane_n; ++i) {
2217 if (!attrs->DMABufPlaneFds[i].IsPresent ||
2218 !attrs->DMABufPlaneOffsets[i].IsPresent ||
2219 !attrs->DMABufPlanePitches[i].IsPresent) {
2220 _eglError(EGL_BAD_PARAMETER, "plane attribute(s) missing");
2221 return 0;
2222 }
2223 }
2224
2225 /**
2226 * The spec also says:
2227 *
2228 * "If <target> is EGL_LINUX_DMA_BUF_EXT, and the EGL_LINUX_DRM_FOURCC_EXT
2229 * attribute indicates a single-plane format, EGL_BAD_ATTRIBUTE is
2230 * generated if any of the EGL_DMA_BUF_PLANE1_* or EGL_DMA_BUF_PLANE2_*
2231 * or EGL_DMA_BUF_PLANE3_* attributes are specified."
2232 */
2233 for (unsigned i = plane_n; i < DMA_BUF_MAX_PLANES; ++i) {
2234 if (attrs->DMABufPlaneFds[i].IsPresent ||
2235 attrs->DMABufPlaneOffsets[i].IsPresent ||
2236 attrs->DMABufPlanePitches[i].IsPresent) {
2237 _eglError(EGL_BAD_ATTRIBUTE, "too many plane attributes");
2238 return 0;
2239 }
2240 }
2241
2242 return plane_n;
2243 }
2244
2245 static EGLBoolean
2246 dri2_query_dma_buf_formats(_EGLDriver *drv, _EGLDisplay *disp,
2247 EGLint max, EGLint *formats, EGLint *count)
2248 {
2249 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2250 if (max < 0 || (max > 0 && formats == NULL))
2251 return _eglError(EGL_BAD_PARAMETER, "invalid value for max count of formats");
2252
2253 if (dri2_dpy->image->base.version < 15 ||
2254 dri2_dpy->image->queryDmaBufFormats == NULL)
2255 return EGL_FALSE;
2256
2257 if (!dri2_dpy->image->queryDmaBufFormats(dri2_dpy->dri_screen, max,
2258 formats, count))
2259 return EGL_FALSE;
2260
2261 return EGL_TRUE;
2262 }
2263
2264 static EGLBoolean
2265 dri2_query_dma_buf_modifiers(_EGLDriver *drv, _EGLDisplay *disp, EGLint format,
2266 EGLint max, EGLuint64KHR *modifiers,
2267 EGLBoolean *external_only, EGLint *count)
2268 {
2269 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2270
2271 if (max < 0)
2272 return _eglError(EGL_BAD_PARAMETER, "invalid value for max count of formats");
2273
2274 if (max > 0 && modifiers == NULL)
2275 return _eglError(EGL_BAD_PARAMETER, "invalid modifiers array");
2276
2277 if (dri2_dpy->image->base.version < 15 ||
2278 dri2_dpy->image->queryDmaBufModifiers == NULL)
2279 return EGL_FALSE;
2280
2281 if (dri2_dpy->image->queryDmaBufModifiers(dri2_dpy->dri_screen, format,
2282 max, modifiers,
2283 (unsigned int *) external_only,
2284 count) == false)
2285 return _eglError(EGL_BAD_PARAMETER, "invalid format");
2286
2287 return EGL_TRUE;
2288 }
2289
2290 /**
2291 * The spec says:
2292 *
2293 * "If eglCreateImageKHR is successful for a EGL_LINUX_DMA_BUF_EXT target, the
2294 * EGL will take a reference to the dma_buf(s) which it will release at any
2295 * time while the EGLDisplay is initialized. It is the responsibility of the
2296 * application to close the dma_buf file descriptors."
2297 *
2298 * Therefore we must never close or otherwise modify the file descriptors.
2299 */
2300 _EGLImage *
2301 dri2_create_image_dma_buf(_EGLDisplay *disp, _EGLContext *ctx,
2302 EGLClientBuffer buffer, const EGLint *attr_list)
2303 {
2304 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2305 _EGLImage *res;
2306 _EGLImageAttribs attrs;
2307 __DRIimage *dri_image;
2308 unsigned num_fds;
2309 int fds[DMA_BUF_MAX_PLANES];
2310 int pitches[DMA_BUF_MAX_PLANES];
2311 int offsets[DMA_BUF_MAX_PLANES];
2312 uint64_t modifier;
2313 bool has_modifier = false;
2314 unsigned error;
2315
2316 /**
2317 * The spec says:
2318 *
2319 * ""* If <target> is EGL_LINUX_DMA_BUF_EXT and <buffer> is not NULL, the
2320 * error EGL_BAD_PARAMETER is generated."
2321 */
2322 if (buffer != NULL) {
2323 _eglError(EGL_BAD_PARAMETER, "buffer not NULL");
2324 return NULL;
2325 }
2326
2327 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2328 return NULL;
2329
2330 if (!dri2_check_dma_buf_attribs(&attrs))
2331 return NULL;
2332
2333 num_fds = dri2_check_dma_buf_format(&attrs);
2334 if (!num_fds)
2335 return NULL;
2336
2337 for (unsigned i = 0; i < num_fds; ++i) {
2338 fds[i] = attrs.DMABufPlaneFds[i].Value;
2339 pitches[i] = attrs.DMABufPlanePitches[i].Value;
2340 offsets[i] = attrs.DMABufPlaneOffsets[i].Value;
2341 }
2342
2343 /* dri2_check_dma_buf_attribs ensures that the modifier, if available,
2344 * will be present in attrs.DMABufPlaneModifiersLo[0] and
2345 * attrs.DMABufPlaneModifiersHi[0] */
2346 if (attrs.DMABufPlaneModifiersLo[0].IsPresent) {
2347 modifier = (uint64_t) attrs.DMABufPlaneModifiersHi[0].Value << 32;
2348 modifier |= (uint64_t) (attrs.DMABufPlaneModifiersLo[0].Value & 0xffffffff);
2349 has_modifier = true;
2350 }
2351
2352 if (has_modifier) {
2353 if (dri2_dpy->image->base.version < 15 ||
2354 dri2_dpy->image->createImageFromDmaBufs2 == NULL) {
2355 _eglError(EGL_BAD_MATCH, "unsupported dma_buf format modifier");
2356 return EGL_NO_IMAGE_KHR;
2357 }
2358 dri_image =
2359 dri2_dpy->image->createImageFromDmaBufs2(dri2_dpy->dri_screen,
2360 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2361 modifier, fds, num_fds, pitches, offsets,
2362 attrs.DMABufYuvColorSpaceHint.Value,
2363 attrs.DMABufSampleRangeHint.Value,
2364 attrs.DMABufChromaHorizontalSiting.Value,
2365 attrs.DMABufChromaVerticalSiting.Value,
2366 &error,
2367 NULL);
2368 }
2369 else {
2370 dri_image =
2371 dri2_dpy->image->createImageFromDmaBufs(dri2_dpy->dri_screen,
2372 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2373 fds, num_fds, pitches, offsets,
2374 attrs.DMABufYuvColorSpaceHint.Value,
2375 attrs.DMABufSampleRangeHint.Value,
2376 attrs.DMABufChromaHorizontalSiting.Value,
2377 attrs.DMABufChromaVerticalSiting.Value,
2378 &error,
2379 NULL);
2380 }
2381 dri2_create_image_khr_texture_error(error);
2382
2383 if (!dri_image)
2384 return EGL_NO_IMAGE_KHR;
2385
2386 res = dri2_create_image_from_dri(disp, dri_image);
2387
2388 return res;
2389 }
2390 static _EGLImage *
2391 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2392 const EGLint *attr_list)
2393 {
2394 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2395 struct dri2_egl_image *dri2_img;
2396 _EGLImageAttribs attrs;
2397 unsigned int dri_use, valid_mask;
2398 int format;
2399
2400 (void) drv;
2401
2402 if (!attr_list) {
2403 _eglError(EGL_BAD_PARAMETER, __func__);
2404 return EGL_NO_IMAGE_KHR;
2405 }
2406
2407 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2408 return EGL_NO_IMAGE_KHR;
2409
2410 if (attrs.Width <= 0 || attrs.Height <= 0) {
2411 _eglError(EGL_BAD_PARAMETER, __func__);
2412 return EGL_NO_IMAGE_KHR;
2413 }
2414
2415 switch (attrs.DRMBufferFormatMESA) {
2416 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2417 format = __DRI_IMAGE_FORMAT_ARGB8888;
2418 break;
2419 default:
2420 _eglError(EGL_BAD_PARAMETER, __func__);
2421 return EGL_NO_IMAGE_KHR;
2422 }
2423
2424 valid_mask =
2425 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
2426 EGL_DRM_BUFFER_USE_SHARE_MESA |
2427 EGL_DRM_BUFFER_USE_CURSOR_MESA;
2428 if (attrs.DRMBufferUseMESA & ~valid_mask) {
2429 _eglError(EGL_BAD_PARAMETER, __func__);
2430 return EGL_NO_IMAGE_KHR;
2431 }
2432
2433 dri_use = 0;
2434 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
2435 dri_use |= __DRI_IMAGE_USE_SHARE;
2436 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
2437 dri_use |= __DRI_IMAGE_USE_SCANOUT;
2438 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
2439 dri_use |= __DRI_IMAGE_USE_CURSOR;
2440
2441 dri2_img = malloc(sizeof *dri2_img);
2442 if (!dri2_img) {
2443 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2444 return EGL_NO_IMAGE_KHR;
2445 }
2446
2447 _eglInitImage(&dri2_img->base, disp);
2448
2449 dri2_img->dri_image =
2450 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
2451 attrs.Width, attrs.Height,
2452 format, dri_use, dri2_img);
2453 if (dri2_img->dri_image == NULL) {
2454 free(dri2_img);
2455 _eglError(EGL_BAD_ALLOC, "dri2_create_drm_image_mesa");
2456 return EGL_NO_IMAGE_KHR;
2457 }
2458
2459 return &dri2_img->base;
2460 }
2461
2462 static EGLBoolean
2463 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2464 EGLint *name, EGLint *handle, EGLint *stride)
2465 {
2466 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2467 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2468
2469 (void) drv;
2470
2471 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
2472 __DRI_IMAGE_ATTRIB_NAME, name))
2473 return _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
2474
2475 if (handle)
2476 dri2_dpy->image->queryImage(dri2_img->dri_image,
2477 __DRI_IMAGE_ATTRIB_HANDLE, handle);
2478
2479 if (stride)
2480 dri2_dpy->image->queryImage(dri2_img->dri_image,
2481 __DRI_IMAGE_ATTRIB_STRIDE, stride);
2482
2483 return EGL_TRUE;
2484 }
2485
2486 static EGLBoolean
2487 dri2_export_dma_buf_image_query_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2488 _EGLImage *img,
2489 EGLint *fourcc, EGLint *nplanes,
2490 EGLuint64KHR *modifiers)
2491 {
2492 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2493 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2494
2495 (void) drv;
2496
2497
2498 if (nplanes)
2499 dri2_dpy->image->queryImage(dri2_img->dri_image,
2500 __DRI_IMAGE_ATTRIB_NUM_PLANES, nplanes);
2501 if (fourcc)
2502 dri2_dpy->image->queryImage(dri2_img->dri_image,
2503 __DRI_IMAGE_ATTRIB_FOURCC, fourcc);
2504
2505 if (modifiers)
2506 *modifiers = 0;
2507
2508 return EGL_TRUE;
2509 }
2510
2511 static EGLBoolean
2512 dri2_export_dma_buf_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2513 int *fds, EGLint *strides, EGLint *offsets)
2514 {
2515 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2516 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2517
2518 (void) drv;
2519
2520 /* rework later to provide multiple fds/strides/offsets */
2521 if (fds)
2522 dri2_dpy->image->queryImage(dri2_img->dri_image,
2523 __DRI_IMAGE_ATTRIB_FD, fds);
2524
2525 if (strides)
2526 dri2_dpy->image->queryImage(dri2_img->dri_image,
2527 __DRI_IMAGE_ATTRIB_STRIDE, strides);
2528
2529 if (offsets) {
2530 int img_offset;
2531 bool ret = dri2_dpy->image->queryImage(dri2_img->dri_image,
2532 __DRI_IMAGE_ATTRIB_OFFSET, &img_offset);
2533 if (ret)
2534 offsets[0] = img_offset;
2535 else
2536 offsets[0] = 0;
2537 }
2538
2539 return EGL_TRUE;
2540 }
2541
2542 #endif
2543
2544 _EGLImage *
2545 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
2546 _EGLContext *ctx, EGLenum target,
2547 EGLClientBuffer buffer, const EGLint *attr_list)
2548 {
2549 (void) drv;
2550
2551 switch (target) {
2552 case EGL_GL_TEXTURE_2D_KHR:
2553 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
2554 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
2555 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
2556 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
2557 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
2558 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
2559 case EGL_GL_TEXTURE_3D_KHR:
2560 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2561 case EGL_GL_RENDERBUFFER_KHR:
2562 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
2563 #ifdef HAVE_LIBDRM
2564 case EGL_DRM_BUFFER_MESA:
2565 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
2566 case EGL_LINUX_DMA_BUF_EXT:
2567 return dri2_create_image_dma_buf(disp, ctx, buffer, attr_list);
2568 #endif
2569 #ifdef HAVE_WAYLAND_PLATFORM
2570 case EGL_WAYLAND_BUFFER_WL:
2571 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
2572 #endif
2573 default:
2574 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2575 return EGL_NO_IMAGE_KHR;
2576 }
2577 }
2578
2579 static EGLBoolean
2580 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
2581 {
2582 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2583 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
2584
2585 (void) drv;
2586
2587 dri2_dpy->image->destroyImage(dri2_img->dri_image);
2588 free(dri2_img);
2589
2590 return EGL_TRUE;
2591 }
2592
2593 #ifdef HAVE_WAYLAND_PLATFORM
2594
2595 static void
2596 dri2_wl_reference_buffer(void *user_data, uint32_t name, int fd,
2597 struct wl_drm_buffer *buffer)
2598 {
2599 _EGLDisplay *disp = user_data;
2600 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2601 __DRIimage *img;
2602 int dri_components = 0;
2603
2604 if (fd == -1)
2605 img = dri2_dpy->image->createImageFromNames(dri2_dpy->dri_screen,
2606 buffer->width,
2607 buffer->height,
2608 buffer->format,
2609 (int*)&name, 1,
2610 buffer->stride,
2611 buffer->offset,
2612 NULL);
2613 else
2614 img = dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
2615 buffer->width,
2616 buffer->height,
2617 buffer->format,
2618 &fd, 1,
2619 buffer->stride,
2620 buffer->offset,
2621 NULL);
2622
2623 if (img == NULL)
2624 return;
2625
2626 dri2_dpy->image->queryImage(img, __DRI_IMAGE_ATTRIB_COMPONENTS, &dri_components);
2627
2628 buffer->driver_format = NULL;
2629 for (int i = 0; i < ARRAY_SIZE(wl_drm_components); i++)
2630 if (wl_drm_components[i].dri_components == dri_components)
2631 buffer->driver_format = &wl_drm_components[i];
2632
2633 if (buffer->driver_format == NULL)
2634 dri2_dpy->image->destroyImage(img);
2635 else
2636 buffer->driver_buffer = img;
2637 }
2638
2639 static void
2640 dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
2641 {
2642 _EGLDisplay *disp = user_data;
2643 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2644
2645 dri2_dpy->image->destroyImage(buffer->driver_buffer);
2646 }
2647
2648 static struct wayland_drm_callbacks wl_drm_callbacks = {
2649 .authenticate = NULL,
2650 .reference_buffer = dri2_wl_reference_buffer,
2651 .release_buffer = dri2_wl_release_buffer
2652 };
2653
2654 static EGLBoolean
2655 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2656 struct wl_display *wl_dpy)
2657 {
2658 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2659 int flags = 0;
2660 uint64_t cap;
2661
2662 (void) drv;
2663
2664 if (dri2_dpy->wl_server_drm)
2665 return EGL_FALSE;
2666
2667 wl_drm_callbacks.authenticate =
2668 (int(*)(void *, uint32_t)) dri2_dpy->vtbl->authenticate;
2669
2670 if (drmGetCap(dri2_dpy->fd, DRM_CAP_PRIME, &cap) == 0 &&
2671 cap == (DRM_PRIME_CAP_IMPORT | DRM_PRIME_CAP_EXPORT) &&
2672 dri2_dpy->image->base.version >= 7 &&
2673 dri2_dpy->image->createImageFromFds != NULL)
2674 flags |= WAYLAND_DRM_PRIME;
2675
2676 dri2_dpy->wl_server_drm =
2677 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
2678 &wl_drm_callbacks, disp, flags);
2679
2680 if (!dri2_dpy->wl_server_drm)
2681 return EGL_FALSE;
2682
2683 #ifdef HAVE_DRM_PLATFORM
2684 /* We have to share the wl_drm instance with gbm, so gbm can convert
2685 * wl_buffers to gbm bos. */
2686 if (dri2_dpy->gbm_dri)
2687 dri2_dpy->gbm_dri->wl_drm = dri2_dpy->wl_server_drm;
2688 #endif
2689
2690 return EGL_TRUE;
2691 }
2692
2693 static EGLBoolean
2694 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2695 struct wl_display *wl_dpy)
2696 {
2697 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2698
2699 (void) drv;
2700
2701 if (!dri2_dpy->wl_server_drm)
2702 return EGL_FALSE;
2703
2704 wayland_drm_uninit(dri2_dpy->wl_server_drm);
2705 dri2_dpy->wl_server_drm = NULL;
2706
2707 return EGL_TRUE;
2708 }
2709
2710 static EGLBoolean
2711 dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
2712 struct wl_resource *buffer_resource,
2713 EGLint attribute, EGLint *value)
2714 {
2715 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2716 struct wl_drm_buffer *buffer;
2717 const struct wl_drm_components_descriptor *format;
2718
2719 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm, buffer_resource);
2720 if (!buffer)
2721 return EGL_FALSE;
2722
2723 format = buffer->driver_format;
2724 switch (attribute) {
2725 case EGL_TEXTURE_FORMAT:
2726 *value = format->components;
2727 return EGL_TRUE;
2728 case EGL_WIDTH:
2729 *value = buffer->width;
2730 return EGL_TRUE;
2731 case EGL_HEIGHT:
2732 *value = buffer->height;
2733 return EGL_TRUE;
2734 }
2735
2736 return EGL_FALSE;
2737 }
2738 #endif
2739
2740 static void
2741 dri2_egl_ref_sync(struct dri2_egl_sync *sync)
2742 {
2743 p_atomic_inc(&sync->refcount);
2744 }
2745
2746 static void
2747 dri2_egl_unref_sync(struct dri2_egl_display *dri2_dpy,
2748 struct dri2_egl_sync *dri2_sync)
2749 {
2750 if (p_atomic_dec_zero(&dri2_sync->refcount)) {
2751 switch (dri2_sync->base.Type) {
2752 case EGL_SYNC_REUSABLE_KHR:
2753 cnd_destroy(&dri2_sync->cond);
2754 break;
2755 case EGL_SYNC_NATIVE_FENCE_ANDROID:
2756 if (dri2_sync->base.SyncFd != EGL_NO_NATIVE_FENCE_FD_ANDROID)
2757 close(dri2_sync->base.SyncFd);
2758 break;
2759 default:
2760 break;
2761 }
2762
2763 if (dri2_sync->fence)
2764 dri2_dpy->fence->destroy_fence(dri2_dpy->dri_screen, dri2_sync->fence);
2765
2766 free(dri2_sync);
2767 }
2768 }
2769
2770 static _EGLSync *
2771 dri2_create_sync(_EGLDriver *drv, _EGLDisplay *dpy,
2772 EGLenum type, const EGLAttrib *attrib_list)
2773 {
2774 _EGLContext *ctx = _eglGetCurrentContext();
2775 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2776 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2777 struct dri2_egl_sync *dri2_sync;
2778 EGLint ret;
2779 pthread_condattr_t attr;
2780
2781 dri2_sync = calloc(1, sizeof(struct dri2_egl_sync));
2782 if (!dri2_sync) {
2783 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2784 return NULL;
2785 }
2786
2787 if (!_eglInitSync(&dri2_sync->base, dpy, type, attrib_list)) {
2788 free(dri2_sync);
2789 return NULL;
2790 }
2791
2792 switch (type) {
2793 case EGL_SYNC_FENCE_KHR:
2794 dri2_sync->fence = dri2_dpy->fence->create_fence(dri2_ctx->dri_context);
2795 if (!dri2_sync->fence) {
2796 /* Why did it fail? DRI doesn't return an error code, so we emit
2797 * a generic EGL error that doesn't communicate user error.
2798 */
2799 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2800 free(dri2_sync);
2801 return NULL;
2802 }
2803 break;
2804
2805 case EGL_SYNC_CL_EVENT_KHR:
2806 dri2_sync->fence = dri2_dpy->fence->get_fence_from_cl_event(
2807 dri2_dpy->dri_screen,
2808 dri2_sync->base.CLEvent);
2809 /* this can only happen if the cl_event passed in is invalid. */
2810 if (!dri2_sync->fence) {
2811 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
2812 free(dri2_sync);
2813 return NULL;
2814 }
2815
2816 /* the initial status must be "signaled" if the cl_event is signaled */
2817 if (dri2_dpy->fence->client_wait_sync(dri2_ctx->dri_context,
2818 dri2_sync->fence, 0, 0))
2819 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2820 break;
2821
2822 case EGL_SYNC_REUSABLE_KHR:
2823 /* intialize attr */
2824 ret = pthread_condattr_init(&attr);
2825
2826 if (ret) {
2827 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2828 free(dri2_sync);
2829 return NULL;
2830 }
2831
2832 /* change clock attribute to CLOCK_MONOTONIC */
2833 ret = pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
2834
2835 if (ret) {
2836 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2837 free(dri2_sync);
2838 return NULL;
2839 }
2840
2841 ret = pthread_cond_init(&dri2_sync->cond, &attr);
2842
2843 if (ret) {
2844 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2845 free(dri2_sync);
2846 return NULL;
2847 }
2848
2849 /* initial status of reusable sync must be "unsignaled" */
2850 dri2_sync->base.SyncStatus = EGL_UNSIGNALED_KHR;
2851 break;
2852
2853 case EGL_SYNC_NATIVE_FENCE_ANDROID:
2854 if (dri2_dpy->fence->create_fence_fd) {
2855 dri2_sync->fence = dri2_dpy->fence->create_fence_fd(
2856 dri2_ctx->dri_context,
2857 dri2_sync->base.SyncFd);
2858 }
2859 if (!dri2_sync->fence) {
2860 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
2861 free(dri2_sync);
2862 return NULL;
2863 }
2864 break;
2865 }
2866
2867 p_atomic_set(&dri2_sync->refcount, 1);
2868 return &dri2_sync->base;
2869 }
2870
2871 static EGLBoolean
2872 dri2_destroy_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2873 {
2874 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2875 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2876 EGLint ret = EGL_TRUE;
2877 EGLint err;
2878
2879 /* if type of sync is EGL_SYNC_REUSABLE_KHR and it is not signaled yet,
2880 * then unlock all threads possibly blocked by the reusable sync before
2881 * destroying it.
2882 */
2883 if (dri2_sync->base.Type == EGL_SYNC_REUSABLE_KHR &&
2884 dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
2885 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2886 /* unblock all threads currently blocked by sync */
2887 err = cnd_broadcast(&dri2_sync->cond);
2888
2889 if (err) {
2890 _eglError(EGL_BAD_ACCESS, "eglDestroySyncKHR");
2891 ret = EGL_FALSE;
2892 }
2893 }
2894
2895 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2896
2897 return ret;
2898 }
2899
2900 static EGLint
2901 dri2_dup_native_fence_fd(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2902 {
2903 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2904 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2905
2906 assert(sync->Type == EGL_SYNC_NATIVE_FENCE_ANDROID);
2907
2908 if (sync->SyncFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
2909 /* try to retrieve the actual native fence fd.. if rendering is
2910 * not flushed this will just return -1, aka NO_NATIVE_FENCE_FD:
2911 */
2912 sync->SyncFd = dri2_dpy->fence->get_fence_fd(dri2_dpy->dri_screen,
2913 dri2_sync->fence);
2914 }
2915
2916 if (sync->SyncFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
2917 /* if native fence fd still not created, return an error: */
2918 _eglError(EGL_BAD_PARAMETER, "eglDupNativeFenceFDANDROID");
2919 return EGL_NO_NATIVE_FENCE_FD_ANDROID;
2920 }
2921
2922 return dup(sync->SyncFd);
2923 }
2924
2925 static EGLint
2926 dri2_client_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
2927 EGLint flags, EGLTime timeout)
2928 {
2929 _EGLContext *ctx = _eglGetCurrentContext();
2930 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2931 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2932 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2933 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2934 unsigned wait_flags = 0;
2935
2936 /* timespecs for cnd_timedwait */
2937 struct timespec current;
2938 xtime expire;
2939
2940 EGLint ret = EGL_CONDITION_SATISFIED_KHR;
2941
2942 /* The EGL_KHR_fence_sync spec states:
2943 *
2944 * "If no context is current for the bound API,
2945 * the EGL_SYNC_FLUSH_COMMANDS_BIT_KHR bit is ignored.
2946 */
2947 if (dri2_ctx && flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)
2948 wait_flags |= __DRI2_FENCE_FLAG_FLUSH_COMMANDS;
2949
2950 /* the sync object should take a reference while waiting */
2951 dri2_egl_ref_sync(dri2_sync);
2952
2953 switch (sync->Type) {
2954 case EGL_SYNC_FENCE_KHR:
2955 case EGL_SYNC_NATIVE_FENCE_ANDROID:
2956 case EGL_SYNC_CL_EVENT_KHR:
2957 if (dri2_dpy->fence->client_wait_sync(dri2_ctx ? dri2_ctx->dri_context : NULL,
2958 dri2_sync->fence, wait_flags,
2959 timeout))
2960 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2961 else
2962 ret = EGL_TIMEOUT_EXPIRED_KHR;
2963 break;
2964
2965 case EGL_SYNC_REUSABLE_KHR:
2966 if (dri2_ctx && dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR &&
2967 (flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)) {
2968 /* flush context if EGL_SYNC_FLUSH_COMMANDS_BIT_KHR is set */
2969 dri2_drv->glFlush();
2970 }
2971
2972 /* if timeout is EGL_FOREVER_KHR, it should wait without any timeout.*/
2973 if (timeout == EGL_FOREVER_KHR) {
2974 mtx_lock(&dri2_sync->mutex);
2975 cnd_wait(&dri2_sync->cond, &dri2_sync->mutex);
2976 mtx_unlock(&dri2_sync->mutex);
2977 } else {
2978 /* if reusable sync has not been yet signaled */
2979 if (dri2_sync->base.SyncStatus != EGL_SIGNALED_KHR) {
2980 clock_gettime(CLOCK_MONOTONIC, &current);
2981
2982 /* calculating when to expire */
2983 expire.nsec = timeout % 1000000000L;
2984 expire.sec = timeout / 1000000000L;
2985
2986 expire.nsec += current.tv_nsec;
2987 expire.sec += current.tv_sec;
2988
2989 /* expire.nsec now is a number between 0 and 1999999998 */
2990 if (expire.nsec > 999999999L) {
2991 expire.sec++;
2992 expire.nsec -= 1000000000L;
2993 }
2994
2995 mtx_lock(&dri2_sync->mutex);
2996 ret = cnd_timedwait(&dri2_sync->cond, &dri2_sync->mutex, &expire);
2997 mtx_unlock(&dri2_sync->mutex);
2998
2999 if (ret == thrd_busy) {
3000 if (dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
3001 ret = EGL_TIMEOUT_EXPIRED_KHR;
3002 } else {
3003 _eglError(EGL_BAD_ACCESS, "eglClientWaitSyncKHR");
3004 ret = EGL_FALSE;
3005 }
3006 }
3007 }
3008 }
3009 break;
3010 }
3011 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
3012
3013 return ret;
3014 }
3015
3016 static EGLBoolean
3017 dri2_signal_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
3018 EGLenum mode)
3019 {
3020 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3021 EGLint ret;
3022
3023 if (sync->Type != EGL_SYNC_REUSABLE_KHR)
3024 return _eglError(EGL_BAD_MATCH, "eglSignalSyncKHR");
3025
3026 if (mode != EGL_SIGNALED_KHR && mode != EGL_UNSIGNALED_KHR)
3027 return _eglError(EGL_BAD_ATTRIBUTE, "eglSignalSyncKHR");
3028
3029 dri2_sync->base.SyncStatus = mode;
3030
3031 if (mode == EGL_SIGNALED_KHR) {
3032 ret = cnd_broadcast(&dri2_sync->cond);
3033
3034 /* fail to broadcast */
3035 if (ret)
3036 return _eglError(EGL_BAD_ACCESS, "eglSignalSyncKHR");
3037 }
3038
3039 return EGL_TRUE;
3040 }
3041
3042 static EGLint
3043 dri2_server_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
3044 {
3045 _EGLContext *ctx = _eglGetCurrentContext();
3046 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
3047 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3048 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3049
3050 dri2_dpy->fence->server_wait_sync(dri2_ctx->dri_context,
3051 dri2_sync->fence, 0);
3052 return EGL_TRUE;
3053 }
3054
3055 static int
3056 dri2_interop_query_device_info(_EGLDisplay *dpy, _EGLContext *ctx,
3057 struct mesa_glinterop_device_info *out)
3058 {
3059 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
3060 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3061
3062 if (!dri2_dpy->interop)
3063 return MESA_GLINTEROP_UNSUPPORTED;
3064
3065 return dri2_dpy->interop->query_device_info(dri2_ctx->dri_context, out);
3066 }
3067
3068 static int
3069 dri2_interop_export_object(_EGLDisplay *dpy, _EGLContext *ctx,
3070 struct mesa_glinterop_export_in *in,
3071 struct mesa_glinterop_export_out *out)
3072 {
3073 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
3074 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3075
3076 if (!dri2_dpy->interop)
3077 return MESA_GLINTEROP_UNSUPPORTED;
3078
3079 return dri2_dpy->interop->export_object(dri2_ctx->dri_context, in, out);
3080 }
3081
3082 static void
3083 dri2_unload(_EGLDriver *drv)
3084 {
3085 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
3086
3087 dlclose(dri2_drv->handle);
3088 free(dri2_drv);
3089 }
3090
3091 static EGLBoolean
3092 dri2_load(_EGLDriver *drv)
3093 {
3094 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
3095 #ifdef HAVE_ANDROID_PLATFORM
3096 const char *libname = "libglapi.so";
3097 #elif defined(__APPLE__)
3098 const char *libname = "libglapi.0.dylib";
3099 #elif defined(__CYGWIN__)
3100 const char *libname = "cygglapi-0.dll";
3101 #else
3102 const char *libname = "libglapi.so.0";
3103 #endif
3104 void *handle;
3105
3106 /* RTLD_GLOBAL to make sure glapi symbols are visible to DRI drivers */
3107 handle = dlopen(libname, RTLD_LAZY | RTLD_GLOBAL);
3108 if (!handle) {
3109 _eglLog(_EGL_WARNING, "DRI2: failed to open glapi provider");
3110 goto no_handle;
3111 }
3112
3113 dri2_drv->get_proc_address = (_EGLProc (*)(const char *))
3114 dlsym(handle, "_glapi_get_proc_address");
3115
3116 /* if glapi is not available, loading DRI drivers will fail */
3117 if (!dri2_drv->get_proc_address) {
3118 _eglLog(_EGL_WARNING, "DRI2: failed to find _glapi_get_proc_address");
3119 goto no_symbol;
3120 }
3121
3122 dri2_drv->glFlush = (void (*)(void))
3123 dri2_drv->get_proc_address("glFlush");
3124
3125 /* if glFlush is not available things are horribly broken */
3126 if (!dri2_drv->glFlush) {
3127 _eglLog(_EGL_WARNING, "DRI2: failed to find glFlush entry point");
3128 goto no_symbol;
3129 }
3130
3131 dri2_drv->handle = handle;
3132 return EGL_TRUE;
3133
3134 no_symbol:
3135 dlclose(handle);
3136 no_handle:
3137 return EGL_FALSE;
3138 }
3139
3140 /**
3141 * This is the main entrypoint into the driver, called by libEGL.
3142 * Create a new _EGLDriver object and init its dispatch table.
3143 */
3144 _EGLDriver *
3145 _eglBuiltInDriverDRI2(const char *args)
3146 {
3147 struct dri2_egl_driver *dri2_drv;
3148
3149 (void) args;
3150
3151 dri2_drv = calloc(1, sizeof *dri2_drv);
3152 if (!dri2_drv)
3153 return NULL;
3154
3155 if (!dri2_load(&dri2_drv->base)) {
3156 free(dri2_drv);
3157 return NULL;
3158 }
3159
3160 _eglInitDriverFallbacks(&dri2_drv->base);
3161 dri2_drv->base.API.Initialize = dri2_initialize;
3162 dri2_drv->base.API.Terminate = dri2_terminate;
3163 dri2_drv->base.API.CreateContext = dri2_create_context;
3164 dri2_drv->base.API.DestroyContext = dri2_destroy_context;
3165 dri2_drv->base.API.MakeCurrent = dri2_make_current;
3166 dri2_drv->base.API.CreateWindowSurface = dri2_create_window_surface;
3167 dri2_drv->base.API.CreatePixmapSurface = dri2_create_pixmap_surface;
3168 dri2_drv->base.API.CreatePbufferSurface = dri2_create_pbuffer_surface;
3169 dri2_drv->base.API.DestroySurface = dri2_destroy_surface;
3170 dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
3171 dri2_drv->base.API.WaitClient = dri2_wait_client;
3172 dri2_drv->base.API.WaitNative = dri2_wait_native;
3173 dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
3174 dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
3175 dri2_drv->base.API.SwapInterval = dri2_swap_interval;
3176 dri2_drv->base.API.SwapBuffers = dri2_swap_buffers;
3177 dri2_drv->base.API.SwapBuffersWithDamageEXT = dri2_swap_buffers_with_damage;
3178 dri2_drv->base.API.SwapBuffersRegionNOK = dri2_swap_buffers_region;
3179 dri2_drv->base.API.SetDamageRegion = dri2_set_damage_region;
3180 dri2_drv->base.API.PostSubBufferNV = dri2_post_sub_buffer;
3181 dri2_drv->base.API.CopyBuffers = dri2_copy_buffers,
3182 dri2_drv->base.API.QueryBufferAge = dri2_query_buffer_age;
3183 dri2_drv->base.API.CreateImageKHR = dri2_create_image;
3184 dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
3185 dri2_drv->base.API.CreateWaylandBufferFromImageWL = dri2_create_wayland_buffer_from_image;
3186 dri2_drv->base.API.QuerySurface = dri2_query_surface;
3187 #ifdef HAVE_LIBDRM
3188 dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
3189 dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
3190 dri2_drv->base.API.ExportDMABUFImageQueryMESA = dri2_export_dma_buf_image_query_mesa;
3191 dri2_drv->base.API.ExportDMABUFImageMESA = dri2_export_dma_buf_image_mesa;
3192 dri2_drv->base.API.QueryDmaBufFormatsEXT = dri2_query_dma_buf_formats;
3193 dri2_drv->base.API.QueryDmaBufModifiersEXT = dri2_query_dma_buf_modifiers;
3194 #endif
3195 #ifdef HAVE_WAYLAND_PLATFORM
3196 dri2_drv->base.API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
3197 dri2_drv->base.API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
3198 dri2_drv->base.API.QueryWaylandBufferWL = dri2_query_wayland_buffer_wl;
3199 #endif
3200 dri2_drv->base.API.GetSyncValuesCHROMIUM = dri2_get_sync_values_chromium;
3201 dri2_drv->base.API.CreateSyncKHR = dri2_create_sync;
3202 dri2_drv->base.API.ClientWaitSyncKHR = dri2_client_wait_sync;
3203 dri2_drv->base.API.SignalSyncKHR = dri2_signal_sync;
3204 dri2_drv->base.API.WaitSyncKHR = dri2_server_wait_sync;
3205 dri2_drv->base.API.DestroySyncKHR = dri2_destroy_sync;
3206 dri2_drv->base.API.GLInteropQueryDeviceInfo = dri2_interop_query_device_info;
3207 dri2_drv->base.API.GLInteropExportObject = dri2_interop_export_object;
3208 dri2_drv->base.API.DupNativeFenceFDANDROID = dri2_dup_native_fence_fd;
3209
3210 dri2_drv->base.Name = "DRI2";
3211 dri2_drv->base.Unload = dri2_unload;
3212
3213 return &dri2_drv->base;
3214 }